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Longfellow, Alden & Harlow (later Alden & Harlow), of Boston, Massachusetts, and
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
,
Margaret Henderson Floyd Margaret Henderson Floyd (1932 – 18 October 1997) was Professor of Architectural History at Tufts University. She was an expert on Boston architecture. Her writing includes several titles on the work of late 19th-century American architects i ...
, ''Architecture after Richardson: Regionalism before Modernism--Longfellow, Alden, and Harlow in Boston and Pittsburgh''.
University of Chicago Press The University of Chicago Press is the largest and one of the oldest university presses in the United States. It is operated by the University of Chicago and publishes a wide variety of academic titles, including ''The Chicago Manual of Style'', ...
with
Pittsburgh History and Landmarks Foundation The Pittsburgh History & Landmarks Foundation (PHLF) is a nonprofit organization founded in 1964 to support the preservation of historic buildings and neighborhoods in Pittsburgh, Pennsylvania, USA. In 1966, PHLF established the Revolving Fund for ...
, Chicago and Pittsburgh, 1st edition (September 1, 1994). )
was the architectural firm of Alexander Wadsworth Longfellow Jr. (1854–1934), Frank Ellis Alden (1859–1908), and Alfred Branch Harlow (1857–1927). The firm, successors to
H. H. Richardson Henry Hobson Richardson, FAIA (September 29, 1838 – April 27, 1886) was an American architect, best known for his work in a style that became known as Richardsonian Romanesque. Along with Louis Sullivan and Frank Lloyd Wright, Richardson is one ...
, continued to provide structures in the Romanesque revival style established by Richardson that is often referred to as
Richardsonian Romanesque Richardsonian Romanesque is a style of Romanesque Revival architecture named after the American architect Henry Hobson Richardson (1838–1886). The revival style incorporates 11th and 12th century southern French, Spanish, and Italian Romanesque ...
. Officially, the firm was Longfellow & Harlow from 1886 until March 1887, with Alden participating as its agent. Then, it was Longfellow, Alden & Harlow, until 1896, when it became Alden & Harlow. The split with Longfellow is described as amicable on page 62 of
Margaret Henderson Floyd Margaret Henderson Floyd (1932 – 18 October 1997) was Professor of Architectural History at Tufts University. She was an expert on Boston architecture. Her writing includes several titles on the work of late 19th-century American architects i ...
's book about the firm, and it had more to do with the fact that Longfellow was in
Boston Boston (), officially the City of Boston, is the state capital and most populous city of the Commonwealth of Massachusetts, as well as the cultural and financial center of the New England region of the United States. It is the 24th- mo ...
and Alden & Harlow had relocated to
Pittsburgh Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
and were managing their firm there due to the number of commissions they received. After Alden died, Harlow practiced with different partners in Pittsburgh until his death. Longfellow continued to practice in Boston until his death. The architects
Frederick G. Scheibler Jr. Frederick Gustavus Scheibler Jr. (May 12, 1872 – June 15, 1958) was an American architect. He was born in Pittsburgh, Pennsylvania, to William Augustus and Eleanor Amelia (Seidel) Scheibler. Although his father's name was William, Frederi ...
,
William L. Steele William LaBarthe Steele (May 2, 1875 – March 4, 1949) was an American architect from Chicago, Illinois. He is considered a principal member of the Prairie School Architectural Movement during the early 20th century. Career After graduating f ...
, and Henry M. Seaver trained in the firm's office. Howard K. Jones was the chief draftsman for the Alden & Harlow office. According to Floyd, "other young draftsmen in the office played roles that are still for the most part unknown". The best documented picture is for the firm's largest commission: the major Carnegie Institute expansion of 1899-1907. Here Jones played a key role, assisted by Steele, Richard Hooker, and John Henry Craner.


Selected commissions


Longfellow, Alden & Harlow

* Music Building at the
University of Pittsburgh The University of Pittsburgh (Pitt) is a public state-related research university in Pittsburgh, Pennsylvania. The university is composed of 17 undergraduate and graduate schools and colleges at its urban Pittsburgh campus, home to the universit ...
(1884) *
Sunnyledge Sunnyledge, formerly known as the McClelland House, is an historic, American home that is located at 5124 Fifth Avenue in the Squirrel Hill North neighborhood of Pittsburgh, Pennsylvania. It was added to the List of City of Pittsburgh historic d ...
(former McClelland House), 5124 Fifth Avenue in the Shadyside neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
(1886) *
West End United Methodist Church West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some R ...
, 621 Main Street in the Elliott neighborhood of Pittsburgh, PA (1887) * Duquesne Club, at 325 Sixth Avenue in downtown Pittsburgh, Pennsylvania (1887 to 1889; addition by Alden & Harlow in 1902) *
Cambridge, Massachusetts City Hall The Cambridge, Massachusetts City Hall is the city hall for Cambridge, Massachusetts, located at 795 Massachusetts Avenue, and built in the Richardsonian Romanesque style. The building additionally serves as a centerpiece of the surrounding Ci ...
, built in 1888 and 1889 *
Edwin Abbot House The Edwin Abbot House, also known as the Zabriskie House, is an historic house at 27 Garden Street (originally 1 Follen Street) in Cambridge, Massachusetts. Built in 1889 to a design by Longfellow, Alden & Harlow, it is a prominent local examp ...
,
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
(1889) *
Brattle Hall Brattle Hall is a historic building along Brattle Street near Harvard Square in Cambridge, Massachusetts. It was constructed in 1889 for the Cambridge Social Union – established in 1871 – when that organization moved into the adjacent ...
,
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
(1889) * First United Methodist Church, Parker Avenue at Library Street, Braddock, Pennsylvania (1889) *
Joseph Horne House Joseph is a common male given name, derived from the Hebrew Yosef (יוֹסֵף). "Joseph" is used, along with "Josef", mostly in English, French and partially German languages. This spelling is also found as a variant in the languages of the mo ...
, 838 Lincoln Avenue in the Allegheny West neighborhood of Pittsburgh, PA (1889) * McKeesport National Bank, Fifth Avenue and Sinclair Street,
McKeesport, Pennsylvania McKeesport is a city in Allegheny County, Pennsylvania, United States. It is situated at the confluence of the Monongahela and Youghiogheny rivers and within the Pittsburgh metropolitan area. The population was 17,727 as of the 2020 census. It ...
(1889 to 1891) * Theodore Parker Church, West Roxbury, Massachusetts (1890) * Frank Alden House, 617 Linden Avenue in the Point Breeze neighborhood of Pittsburgh, PA (1890) * Carnegie Institute and
Carnegie Library of Pittsburgh The Carnegie Library of Pittsburgh is the public library system in Pittsburgh, Pennsylvania. Its main branch is located in the Oakland neighborhood of Pittsburgh, and it has 19 branch locations throughout the city. Like hundreds of other Carn ...
in the
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
neighborhood of Pittsburgh, PA (1892 to 1895; addition to Institute by Alden & Harlow from 1903 to 1907)''Landmark Architecture: Pittsburgh and Allegheny County'' by
Walter C. Kidney Walter may refer to: People * Walter (name), both a surname and a given name * Little Walter, American blues harmonica player Marion Walter Jacobs (1930–1968) * Gunther (wrestler), Austrian professional wrestler and trainer Walter Hahn (born 19 ...
, page 234 (1985,
Pittsburgh History and Landmarks Foundation The Pittsburgh History & Landmarks Foundation (PHLF) is a nonprofit organization founded in 1964 to support the preservation of historic buildings and neighborhoods in Pittsburgh, Pennsylvania, USA. In 1966, PHLF established the Revolving Fund for ...
, Pittsburgh, Pennsylvania)
* Hunnewell Building at
Arnold Arboretum The Arnold Arboretum of Harvard University is a botanical research institution and free public park, located in the Jamaica Plain and Roslindale neighborhoods of Boston, Massachusetts. Established in 1872, it is the oldest public arboretum in N ...
in Boston, Massachusetts (1892 to 1903) * J.A. Noyes House,
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
(1894) *" Bagatelle" (James G. Pontefract House), Little Sewickley Creek Road, Edgeworth, Pennsylvania (1894) *" Red Gables" (Frank Alden House), 605 Maple Lane, Edgeworth, Pennsylvania (1894) * Carnegie Building (Pittsburgh), the first steel-framed building in Pittsburgh, PA (1895) *
Garrison Foundry-Mackintosh Hemphill Company Offices Garrison Foundry-Mackintosh Hemphill Company Offices located at 901-911 Bingham Street in the South Side Flats neighborhood of Pittsburgh, Pennsylvania, were built from 1895 to 1902. This Greek Revival architecture, Greek Revival styled building ...
, South Side Flats, Pittsburgh, PA (1895)


Alden & Harlow

*
Carnegie Library of Homestead The Carnegie Library of Homestead is a public library founded by Andrew Carnegie in 1898. It is one of 2,509 Carnegie libraries worldwide; 1,689 built in the United States. It was the sixth library commissioned by Carnegie in the U.S. and the se ...
,
Munhall, Pennsylvania Munhall is a borough in Allegheny County, Pennsylvania, United States, on the west bank of the Monongahela River, south of the confluence of the Monongahela and the Allegheny rivers where the Ohio River begins. It abuts the borough of Homestead. ...
(1896) *The greenhouse and playhouse at the Frick Art & Historical Center, in the Point Breeze neighborhood of Pittsburgh, PA (1897) *Byers-Lyons House, in the Allegheny West neighborhood of Pittsburgh, PA (1898) *
Lawrenceville Branch of the Carnegie Library of Pittsburgh The Lawrenceville Branch of the Carnegie Library of Pittsburgh, which is located at 279 Fisk Street in the Lawrenceville neighborhood of Pittsburgh, Pennsylvania, opened on May 10, 1898. Designed by the architectural firm Alden & Harlow, it was ...
(1898) * The Pittsburgh Golf Club, 5280 Northumberland Street in the
Squirrel Hill Squirrel Hill is a residential neighborhood in the East End of Pittsburgh, Pennsylvania, United States. The city officially divides it into two neighborhoods, Squirrel Hill North and Squirrel Hill South, but it is almost universally treated a ...
neighborhood of Pittsburgh, PA (1899, enlarged 1904) *Carnegie Library of Steubenville, 407 S. 4th Street, Steubenville, Ohio (1899) Renovated (2018) Main Library, Public Library of Steubenville and Jefferson County *
Mount Washington Branch of the Carnegie Library of Pittsburgh The Mount Washington Branch of the Carnegie Library of Pittsburgh located at 315 Grandview Avenue in the Mount Washington neighborhood of Pittsburgh, Pennsylvania, was built in 1900. It was designed by the architectural firm Alden & Harlow, and ...
(1900) * Oakmont Carnegie Library, Allegheny River Boulevard, Oakmont, Pennsylvania (1901) * The Bank Tower (Peoples Savings Bank Building), at 307 Fourth Avenue in downtown Pittsburgh, Pennsylvania (1901 and 1902) * Western Pennsylvania School for the Deaf Administrative Building, Swissvale Avenue and Walnut Street in Edgewood, Pennsylvania (1903) * Bellefield Boiler Plant ("Cloud Factory"), built to provide steam for the Carnegie Institute, Pittsburgh, PA (1903 to 1907) *" Muottas" (William Walker House), Little Sewickley Creek Road, Edgeworth, Pennsylvania (1904) * Regal Shoe Company, at the corner of Market Street and Fifth Avenue (160 Fifth Avenue), downtown Pittsburgh, Pennsylvania (1908) *
South Side Branch of the Carnegie Library of Pittsburgh South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz ...
(1909) *
Homewood Branch of the Carnegie Library of Pittsburgh The Homewood Branch of the Carnegie Library of Pittsburgh is an historic library which is located in the city of in Pittsburgh, Pennsylvania. It was built at 7101 Hamilton Avenue in the Homewood South neighborhood, and opened on March 10, 1910. ...
(1910) *
Mellon Park Mellon Park is a park in the Shadyside and Point Breeze neighborhoods of Pittsburgh, Pennsylvania, straddling both sides of Fifth Avenue, from approximately Shady Avenue to Penn Avenue, the western corner abutting Pittsburgh Center for the Ar ...
gardens in the Point Breeze neighborhood of Pittsburgh, PA (1912) *
Fox Chapel Golf Club Foxes are small to medium-sized, omnivorous mammals belonging to several genera of the family Canidae. They have a flattened skull, upright, triangular ears, a pointed, slightly upturned snout, and a long bushy tail (or ''brush''). Twelve sp ...
, 426 Fox Chapel Road in Fox Chapel, Pennsylvania (1924 and 1925)


Longfellow, Alden & Harlow gallery

File:Sunnyledge.jpg,
Sunnyledge Sunnyledge, formerly known as the McClelland House, is an historic, American home that is located at 5124 Fifth Avenue in the Squirrel Hill North neighborhood of Pittsburgh, Pennsylvania. It was added to the List of City of Pittsburgh historic d ...
, built in 1886, in the Shadyside neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:WestEndUnitedMethodistChurch.jpg,
West End United Methodist Church West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some R ...
, built in 1887, in the Elliott neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:DuquesneClub.jpg, Duquesne Club, built from 1887 to 1889, in downtown Pittsburgh, Pennsylvania (with an addition by Alden & Harlow in 1902). File:Cambridge, Massachusetts City Hall.jpg,
Cambridge, Massachusetts City Hall The Cambridge, Massachusetts City Hall is the city hall for Cambridge, Massachusetts, located at 795 Massachusetts Avenue, and built in the Richardsonian Romanesque style. The building additionally serves as a centerpiece of the surrounding Ci ...
, built in 1888 and 1889. File:Edwin Abbot House - 1 Follen Street, Cambridge, MA - IMG 4061.JPG,
Edwin Abbot House The Edwin Abbot House, also known as the Zabriskie House, is an historic house at 27 Garden Street (originally 1 Follen Street) in Cambridge, Massachusetts. Built in 1889 to a design by Longfellow, Alden & Harlow, it is a prominent local examp ...
, built in 1889, in
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
. File:Brattle Hall in Cambridge, MA.jpg,
Brattle Hall Brattle Hall is a historic building along Brattle Street near Harvard Square in Cambridge, Massachusetts. It was constructed in 1889 for the Cambridge Social Union – established in 1871 – when that organization moved into the adjacent ...
, built in 1889, in
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
. File:JosephHorneHouse.jpg,
Joseph Horne House Joseph is a common male given name, derived from the Hebrew Yosef (יוֹסֵף). "Joseph" is used, along with "Josef", mostly in English, French and partially German languages. This spelling is also found as a variant in the languages of the mo ...
, built in 1889, in the Allegheny West neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:McKeesportNationalBank.jpg, McKeesport National Bank (now McKeesport City Hall), built from 1889 to 1891, in
McKeesport, Pennsylvania McKeesport is a city in Allegheny County, Pennsylvania, United States. It is situated at the confluence of the Monongahela and Youghiogheny rivers and within the Pittsburgh metropolitan area. The population was 17,727 as of the 2020 census. It ...
. File:Carnegie Music Hall Pittsburgh.JPG, Carnegie Institute, 1892 to 1895, original building, as well as an addition from 1903 to 1907, in the
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:CarnegieLibraryPittsburghFrontEntrance.jpg,
Carnegie Library of Pittsburgh The Carnegie Library of Pittsburgh is the public library system in Pittsburgh, Pennsylvania. Its main branch is located in the Oakland neighborhood of Pittsburgh, and it has 19 branch locations throughout the city. Like hundreds of other Carn ...
, 1892 to 1895. File:CarnegieFreeLibraryofBraddock.jpg,
Carnegie Free Library of Braddock The Braddock Carnegie Library in Braddock, Pennsylvania, is the first Carnegie Library in the United States. As such, the library was named a National Historic Landmark in 2012, following its listing on the National Register of Historic Places i ...
in Braddock, Pennsylvania, built in 1888 and designed by
William Halsey Wood William Halsey Wood (April 24, 1855 – March 13, 1897) was an American architect. Early life Wood was the youngest of four sons born to Daniel Halsey Wood and Hannah Lippincott Wood. Shortly after his birth in 1855, the family relocated from ...
. The 1893 addition by Longfellow, Alden & Harlow is to the right of and including the octagonal tower. File:J. A. Noyes House, 1 Highland Street, Cambridge, MA - IMG 4328.JPG, J.A. Noyes House, built in 1894, in
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. As part of the Boston metropolitan area, the cities population of the 2020 U.S. census was 118,403, making it the fourth most populous city in the state, behind Boston, ...
. File:FormerGarrisonFoundry-MackintoshHemphillCo.jpg,
Garrison Foundry-Mackintosh Hemphill Company Offices Garrison Foundry-Mackintosh Hemphill Company Offices located at 901-911 Bingham Street in the South Side Flats neighborhood of Pittsburgh, Pennsylvania, were built from 1895 to 1902. This Greek Revival architecture, Greek Revival styled building ...
, built in 1895, in the South Side Flats neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
.


Alden & Harlow gallery

File:CarnegieLibraryofHomestead.jpg,
Carnegie Library of Homestead The Carnegie Library of Homestead is a public library founded by Andrew Carnegie in 1898. It is one of 2,509 Carnegie libraries worldwide; 1,689 built in the United States. It was the sixth library commissioned by Carnegie in the U.S. and the se ...
, built in 1896, in
Munhall, Pennsylvania Munhall is a borough in Allegheny County, Pennsylvania, United States, on the west bank of the Monongahela River, south of the confluence of the Monongahela and the Allegheny rivers where the Ohio River begins. It abuts the borough of Homestead. ...
. File:FrickGreenhouse.jpg, The greenhouse and playhouse at the Frick Art & Historical Center, built in 1897, in the Point Breeze neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:Byers-LyonsHouse.jpg,
Byers-Lyons House The Byers-Lyons House (now Byers Hall of the Community College of Allegheny County's Allegheny Campus) in the Allegheny West neighborhood of Pittsburgh, Pennsylvania, is a building from 1898. It was added to the List of City of Pittsburgh hist ...
, built in 1898, in the Allegheny West neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:CarnegieLibaryLawrencevillePHLF.jpg,
Lawrenceville Branch of the Carnegie Library of Pittsburgh The Lawrenceville Branch of the Carnegie Library of Pittsburgh, which is located at 279 Fisk Street in the Lawrenceville neighborhood of Pittsburgh, Pennsylvania, opened on May 10, 1898. Designed by the architectural firm Alden & Harlow, it was ...
, built in 1898. File:CarnegieLibraryofPittsburgh,MountWashington.JPG,
Mount Washington Branch of the Carnegie Library of Pittsburgh The Mount Washington Branch of the Carnegie Library of Pittsburgh located at 315 Grandview Avenue in the Mount Washington neighborhood of Pittsburgh, Pennsylvania, was built in 1900. It was designed by the architectural firm Alden & Harlow, and ...
, built in 1900. File:ArrottBuildingandTheBankTower.jpg, The Bank Tower (on the right), built in 1901 and 1902, at 307 Fourth Avenue in downtown Pittsburgh, Pennsylvania. File:Bellefield Boiler Plant Pittsburgh.jpg,
Cloud Factory Bellefield Boiler Plant, also known as "The Cloud Factory" from its nickname's use in Michael Chabon's 1988 debut novel ''The Mysteries of Pittsburgh'', is a boiler plant located in Junction Hollow (referred to as "The Lost Neighborhood" in Chabo ...
, built from 1903 to 1907, in the
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
district of
Pittsburgh Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
,
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
. File:MarketatFifth.jpg, Regal Shoe Company, part of Market at Fifth by
Market Square The market square (or sometimes, the market place) is a Town square, square meant for trading, in which a market is held. It is an important feature of many towns and cities around the world.downtown Pittsburgh, Pennsylvania, built in 1908. File:SouthSideCarnegieLibraryPittsburgh.jpg,
South Side Branch of the Carnegie Library of Pittsburgh South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþaz ...
, built in 1909. File:HomewoodCarnegieLibraryofPittsburgh.jpg,
Homewood Branch of the Carnegie Library of Pittsburgh The Homewood Branch of the Carnegie Library of Pittsburgh is an historic library which is located in the city of in Pittsburgh, Pennsylvania. It was built at 7101 Hamilton Avenue in the Homewood South neighborhood, and opened on March 10, 1910. ...
, built in 1910. File:MellonParkFountain.jpg,
Mellon Park Mellon Park is a park in the Shadyside and Point Breeze neighborhoods of Pittsburgh, Pennsylvania, straddling both sides of Fifth Avenue, from approximately Shady Avenue to Penn Avenue, the western corner abutting Pittsburgh Center for the Ar ...
, gardens designed in 1912, in the Point Breeze neighborhood of
Pittsburgh, Pennsylvania Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...
. File:Main Library of Steubenville and Jefferson County Ohio.jpg, Main Library, Public Library of Steubenville and Jefferson County Ohio, First Carnegie Library approved for Ohio, June 30, 1899, Opened March 12, 1902. .


References

{{DEFAULTSORT:Longfellow, Alden and Harlow Defunct architecture firms based in Massachusetts Defunct architecture firms based in Pennsylvania Architects from Boston Architects from Pittsburgh American companies established in 1886 Design companies established in 1886 Design companies disestablished in 1896 1886 establishments in Massachusetts 1896 disestablishments in Pennsylvania Richardsonian Romanesque architecture in Massachusetts Richardsonian Romanesque architecture in Pennsylvania Historicist architects