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Almon Brown Strowger (February 11, 1839 – May 26, 1902) was an American inventor who gave his name to the
Strowger switch The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system. It was developed by the Strowger Automatic Telephone Exchange Company founded in 1891 by Almon Brown Strowger. Because of ...
, an electromechanical
telephone exchange A telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital syst ...
technology that his invention and patent inspired.


Early years

Strowger was born in
Penfield, New York Penfield is a town in Monroe County, New York, United States. The population was 36,242 at the 2010 census. The town was incorporated in 1810 by the proprietor Daniel Penfield, who purchased the town lands in 1795 and moved to the area in 1809 ...
, near
Rochester Rochester may refer to: Places Australia * Rochester, Victoria Canada * Rochester, Alberta United Kingdom *Rochester, Kent ** City of Rochester-upon-Medway (1982–1998), district council area ** History of Rochester, Kent ** HM Prison ...
, the grandson of the second settler and first
miller A miller is a person who operates a Gristmill, mill, a machine to grind a grain (for example corn or wheat) to make flour. Mill (grinding), Milling is among the oldest of human occupations. "Miller", "Milne" and other variants are common surname ...
in Penfield. Little is known about his early life. It is said that if his mother gave her children a task, Strowger and his brothers would often try to devise a machine to do the task for them. He taught school in Penfield for a time, and served in the 8th New York Volunteer Cavalry during the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States. It was fought between the Union ("the North") and the Confederacy ("the South"), the latter formed by states th ...
. It is believed that he fought in the
Second Battle of Bull Run The Second Battle of Bull Run or Battle of Second Manassas was fought August 28–30, 1862, in Prince William County, Virginia, as part of the American Civil War. It was the culmination of the Northern Virginia Campaign waged by Confederate ...
near
Manassas, Virginia Manassas (), formerly Manassas Junction, is an independent city in the Commonwealth of Virginia, United States. The population was 42,772 at the 2020 Census. It is the county seat of Prince William County, although the two are separate jurisdi ...
. After the Civil War, it appears he first became a country school teacher before he became an
undertaker A funeral director, also known as an undertaker (British English) or mortician (American English), is a professional involved in the business of funeral rites. These tasks often entail the embalming and burial or cremation of the dead, as w ...
. He is variously attributed as living in
El Dorado, Kansas El Dorado ( ) is city and county seat of Butler County, Kansas, United States. It is situated along the Walnut River in the central part of Butler County and located in south-central Kansas. As of the 2020 census, the population of the city ...
, or
Topeka, Kansas Topeka ( ; Kansa language, Kansa: ; iow, Dópikˀe, script=Latn or ) is the Capital (political), capital city of the U.S. state of Kansas and the County seat, seat of Shawnee County, Kansas, Shawnee County. It is along the Kansas River in the ...
, and finally
Kansas City, Missouri Kansas City (abbreviated KC or KCMO) is the largest city in Missouri by population and area. As of the 2020 census, the city had a population of 508,090 in 2020, making it the 36th most-populous city in the United States. It is the central ...
. It is not clear where his idea of an automatic telephone exchange was originally conceived, but his patent application identifies him as being a resident of Kansas City, Missouri, on March 10, 1891.


Rotary dialing

Anecdotally, Strowger's
undertaking Undertaking may refer to: * Task (project management), in general * The services provided by an undertaker, mortician, or a funeral director * Company, in business, in particular in European Union law, the term is used interchangeably, i.e. a bus ...
business was losing clients to a competitor whose telephone-operator wife was redirecting everyone who called for Strowger. Motivated to remove the intermediary operator, he invented the first
automatic telephone exchange telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital syst ...
in 1889; he received its patent in 1891. It is reported that he initially constructed a model of his invention from a round collar box and some straight pins.


Finances

While he may have come up with the idea, he was not alone in his endeavors and sought the assistance of his nephew William and others with a knowledge of electricity and money to realise his concepts. With this help the
Strowger Automatic Telephone Exchange Company Automatic Electric Company (A.E. Co.) was an American telephone equipment supplier primarily for independent telephone companies in North America, but also had a worldwide presence. With its line of automatic telephone exchanges, it was also a lo ...
was formed and it installed and opened the first commercial exchange in (his then home town of)
La Porte, Indiana La Porte (French for "The Door") is a city in LaPorte County, Indiana, United States, of which it is the county seat. Its population was estimated to be 21,341 in 2022. It is one of the two principal cities of the Michigan City-La Porte, India ...
, on November 3, 1892, with about 75 subscribers and capacity for 99. He married Susan A. (1846–1921) from
Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut assachusett writing systems, məhswatʃəwiːsət'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ...
in 1897 as his second wife. Strowger sold his patents to his associates in 1896 for $1,800 (about $58,621.50 in 2021) and sold his share in the
Automatic Electric Company Automatic Electric Company (A.E. Co.) was an American telephone equipment supplier primarily for independent telephone companies in North America, but also had a worldwide presence. With its line of automatic telephone exchanges, it was also a lo ...
for $10,000 (about $329,598.80 in 2021) in 1898. His patents were subsequently sold to Bell Systems for $2.5 million in 1916 (about $62,744,724.77 in 2021). The company's engineers continued development of Strowger's designs and submitted several patents in the names of its employees. It also underwent several name changes. Strowger himself seems to have not taken part in this further development. He subsequently moved to
St. Petersburg, Florida St. Petersburg is a city in Pinellas County, Florida, United States. As of the 2020 census, the population was 258,308, making it the fifth-most populous city in Florida and the second-largest city in the Tampa Bay Area, after Tampa. It is the ...
, and appears to have returned to being an undertaker, as H.P. Bussey Funeral Home records report an unidentified body being moved "for Mr. Strowger" in December 1899. The same funeral home subsequently buried Strowger himself. Strowger was a man of some wealth at his death and was reported as owning at least a city block of property.


Death

He died, aged 63, of an
aneurysm An aneurysm is an outward bulging, likened to a bubble or balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. Aneurysms may be a result of a hereditary condition or an acquired disease. Aneurysms can also be a nidus (s ...
after suffering from
anemia Anemia or anaemia (British English) is a blood disorder in which the blood has a reduced ability to carry oxygen due to a lower than normal number of red blood cells, or a reduction in the amount of hemoglobin. When anemia comes on slowly, th ...
, at
St. Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
,
Pinellas County, Florida Pinellas County (, ) is a county located on the west central coast of the U.S. state of Florida. As of the 2020 census, the population was 959,107. The county is part of the Tampa– St. Petersburg– Clearwater, Florida Metropolitan Statistic ...
, and was buried in Greenwood Cemetery the next day. His grave is marked with the traditional white
headstone A headstone, tombstone, or gravestone is a stele or marker, usually stone, that is placed over a grave. It is traditional for burials in the Christian, Jewish, and Muslim religions, among others. In most cases, it has the deceased's name, da ...
with an inscription that reads: "Lieut. A.B. Strowger, Co. A, 8 NY Cav." He was survived by his widow Susan A. Strowger (1846–1921). After her death in
Tampa, Florida Tampa () is a city on the Gulf Coast of the United States, Gulf Coast of the U.S. state of Florida. The city's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. Tampa is the largest city in the Tampa Bay area and ...
, on April 14, 1921, her obituary appeared in the ''
St. Petersburg Times The ''Tampa Bay Times'', previously named the ''St. Petersburg Times'' until 2011, is an American newspaper published in St. Petersburg, Florida, United States. It has won fourteen Pulitzer Prizes since 1964, and in 2009, won two in a single ...
'', claiming she had additional "revolutionary" Strowger designs, but she had refused to make them public while she was alive because only others would profit from her husband's designs. She had claimed that her husband had only received $10,000 for his invention, when he should have received $1,000,000.


Legacy

A bronze plaque, to commemorate his invention, was placed on his grave in 1945 by telephone company officials. Strowger was admitted to the hall of fame of the U.S. Independent Telephone Association (now called the
USTA The United States Tennis Association (USTA) is the national governing body for tennis in the United States. A not-for-profit organization with more than 700,000 members, it invests 100% of its proceeds to promote and develop the growth of tennis, ...
) in 1965. Apart from his invention, his name has also been given to a
locomotive A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor ...
and a company business award. In 2003, the Verizon Foundation awarded $4500 to Pinellas Heritage, Inc. and the Pinellas Genealogy Society in Strowger's memory. The funds were used to develop a website to impart the history of the cemetery where Strowger is buried, and to restore two Civil War memorials. The Greenwood Cemetery project won an organization achievement award from the Florida Trust for Historic Preservation.


Patents

* Strowger switch "Automatic Telephone Exchange" March 10, 1891


See also

*
Strowger switch The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system. It was developed by the Strowger Automatic Telephone Exchange Company founded in 1891 by Almon Brown Strowger. Because of ...
*
Rotary dial A rotary dial is a component of a telephone or a telephone switchboard that implements a signaling technology in telecommunications known as pulse dialing. It is used when initiating a telephone call to transmit the destination telephone number ...
* Things named after Strowger *
Telephone exchange A telephone exchange, telephone switch, or central office is a telecommunications system used in the public switched telephone network (PSTN) or in large enterprises. It interconnects telephone subscriber lines or virtual circuits of digital syst ...
* Census tabulation, Strowger as a farmer in Ohio in 1870 * Census tabulation, Strowger working in real estate in Florida in 1900 * Census tabulation, Susan Strowger as widow in Florida in 1910


References


Additional sources

* Katherine Wilcox Thompson, "Penfield's Past", 1960, pub. by the Town of Penfield, NY, pp 178–179 * * *
Bell Labs Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial research and scientific development company owned by mult ...

Bell Laboratories Website


External links


The oldest Strowger switch still in commercial service today at Camp Shohola for Boys, Pennsylvania, US


* ttps://web.archive.org/web/20111025123622/http://www.privateline.com/Switching/EarlyYears.html Reproduction with permission of the article ''The Early Years of the Strowger System'' by R.B. Hill
Pinellas Genealogy Society – H.P. Bussey Funeral Home Records – with 2 entries for STROWGER, one identified as A.B. Strowger




* ttp://www.samhallas.co.uk/railway/brt_locos.htm BRT Locomotives – Almon B. Strowger
The Strowger Telecoms Site (UK) with link to 'copyrighted' sounds


* *''TCI Library -'
''This is Automatic Electric''. 1955.
{{DEFAULTSORT:Strowger, Almon Brown 1839 births 1902 deaths People from Penfield, New York Union Army officers 19th-century American inventors People from Kansas City, Kansas Deaths from aneurysm