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Alexander Slidell Mackenzie (April 6, 1803 – September 13, 1848), born Alexander Slidell, was a
United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
officer, famous for his 1842 decision to execute three suspected mutineers aboard a ship under his command in the Somers Mutiny. Mackenzie was also an accomplished man of letters, producing several volumes of travel writing and biographies of early important US naval figures, some of whom he knew personally. Mackenzie was the brother of Senator
John Slidell John Slidell (1793July 9, 1871) was an American politician, lawyer, and businessman. A native of New York, Slidell moved to Louisiana as a young man and became a Representative and Senator. He was one of two Confederate diplomats captured by the ...
of
Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...
, who was later involved in 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 ...
's ''Trent'' Affair. Mackenzie was the captain of USS ''Somers'' when it became the only US Navy ship to undergo a mutiny, which led to executions, including Philip Spencer, the 19-year-old son of the
Secretary of War The secretary of war was a member of the U.S. president's Cabinet, beginning with George Washington's administration. A similar position, called either "Secretary at War" or "Secretary of War", had been appointed to serve the Congress of the ...
John C. Spencer. Mackenzie's handling of the ''Somers'' Mutiny, including its lack of a lawful court martial, was highly controversial and public opinion ran against him. The mutiny proved the need for systematic training of cadets before they went to sea. In 1845,
Secretary of the Navy The secretary of the Navy (or SECNAV) is a statutory officer () and the head (chief executive officer) of the Department of the Navy, a military department (component organization) within the United States Department of Defense. By law, the se ...
George Bancroft George Bancroft (October 3, 1800 – January 17, 1891) was an American historian, statesman and Democratic politician who was prominent in promoting secondary education both in his home state of Massachusetts and at the national and internati ...
seized on the Somers affair as a reason to establish the
United States Naval Academy The United States Naval Academy (US Naval Academy, USNA, or Navy) is a federal service academy in Annapolis, Maryland. It was established on 10 October 1845 during the tenure of George Bancroft as Secretary of the Navy. The Naval Academy ...
.


Early life

Mackenzie (then Slidell) was born April 6, 1803, in
New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...
, to Margery (also spelled Marjorie) ( Mackenzie) and John Slidell. Alexander was one of a large family of children. His older siblings included:
Thomas Slidell Thomas Slidell (c.1807 – April 20, 1864) was chief justice of the Louisiana Supreme Court. He was a brother of John Slidell, a diplomat of the Confederate States of America in France. He entered Yale College from New York and graduated in ...
, chief justice of
Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...
's state Supreme court;
John Slidell John Slidell (1793July 9, 1871) was an American politician, lawyer, and businessman. A native of New York, Slidell moved to Louisiana as a young man and became a Representative and Senator. He was one of two Confederate diplomats captured by the ...
, US Senator from Louisiana; and Jane Slidell, who married Commodore
Matthew C. Perry Matthew Calbraith Perry (April 10, 1794 – March 4, 1858) was a commodore of the United States Navy who commanded ships in several wars, including the War of 1812 and the Mexican–American War (1846–1848). He played a leading role in the o ...
. Jane's marriage to Perry was to have a particularly profound influence on her younger brother's life, bringing him into close contact with one of the nation's leading naval families, which included Matthew's heroic older brother, Commodore
Oliver Hazard Perry Oliver Hazard Perry (August 23, 1785 – August 23, 1819) was an American naval commander, born in South Kingstown, Rhode Island. The best-known and most prominent member of the Perry family naval dynasty, he was the son of Sarah Wallace A ...
, and members of Commodore John Rodgers' family, with whom the Perrys intermarried. In 1837–1838, Alexander Slidell petitioned the New York State legislature and obtained the right to change his name to Mackenzie, reputedly as a condition of claiming the inheritance of a maternal uncle.


Naval service

Mackenzie entered the
U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage o ...
as a
midshipman A midshipman is an officer of the lowest rank, in the Royal Navy, United States Navy, and many Commonwealth navies. Commonwealth countries which use the rank include Canada (Naval Cadet), Australia, Bangladesh, Namibia, New Zealand, South Afr ...
in 1815. A contemporary of
Henry Wadsworth Longfellow Henry Wadsworth Longfellow (February 27, 1807 – March 24, 1882) was an American poet and educator. His original works include " Paul Revere's Ride", '' The Song of Hiawatha'', and ''Evangeline''. He was the first American to completely tran ...
and a personal friend of
Washington Irving Washington Irving (April 3, 1783 – November 28, 1859) was an American short-story writer, essayist, biographer, historian, and diplomat of the early 19th century. He is best known for his short stories "Rip Van Winkle" (1819) and " The Legen ...
, he published a number of books, including ''A Year in Spain'', ''Life of John Paul Jones'', ''Life of Commodore Stephen Decatur'', and ''Life of Commodore Oliver Hazard Perry'' (his late brother-in-law). He was promoted to
lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a commissioned officer rank in the armed forces of many nations. The meaning of lieutenant differs in different militaries (see comparative military ranks), but it is often ...
on January 13, 1825, and to
commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countries this naval rank is termed frigate captain. ...
on September 8, 1841. was launched by the New York Navy Yard on April 16, 1842, and was commissioned on 12 May 1842, with Mackenzie in command. After completing a shakedown cruise to
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and back, the new brig sailed out of New York Harbor on September 13, 1842, with orders to head for the Atlantic coast of Africa with dispatches for the sloop . ''Somers'' was also acting as an experimental
schoolship A training ship is a ship used to train students as sailors. The term is mostly used to describe ships employed by navies to train future officers. Essentially there are two types: those used for training at sea and old hulks used to house classr ...
for naval apprentices on this voyage; the ''Somers'' crew was mostly inexperienced sailors and seamen. After looking for ''Vandalia'' at Madeira,
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, and
Porto Praia Porto or Oporto () is the second-largest city in Portugal, the capital of the Porto District, and one of the Iberian Peninsula's major urban areas. Porto city proper, which is the entire municipality of Porto, is small compared to its metropol ...
, ''Somers'' arrived at
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, Liberia, on November 10, only to discover that the sloop had already sailed for home. The next day, Mackenzie set sail for the
Virgin Islands The Virgin Islands ( es, Islas Vírgenes) are an archipelago in the Caribbean Sea. They are geologically and biogeographically the easternmost part of the Greater Antilles, the northern islands belonging to the Puerto Rico Trench and St. Cro ...
hoping to meet up with ''Vandalia'' at St. Thomas before the return journey back to New York.


''Somers'' mutiny

On the passage to West Africa, some of the ''Somers'' officers noticed a steady worsening of morale among the crew. On the way home on November 26, 1842 Mackenzie learned of the plot and arrested Midshipman Philip Spencer, the 19-year old son of Secretary of War
John Canfield Spencer John Canfield Spencer (January 8, 1788May 17, 1855) was an American lawyer, politician, judge and United States Cabinet secretary in the administration of President John Tyler. Early life John Canfield Spencer was born on January 8, 1788, in H ...
, for inciting mutiny. The other two young plotters arrested with Spencer were
Elisha Small Elisha Small (died December 1, 1842) was an American sailor who was sailing with the rank of Seaman. He had served on several kinds of ships, including a Slave ship, slaver, before joining the United States Navy. In November 1842, while serving a ...
and
Samuel Cromwell Samuel Cromwell (died December 1, 1842) was a sailor and petty officer (boatswain's mate) aboard the brig USS ''Somers''. Cromwell was feared by the young apprentices who made up the majority of the ship's crew, and was rumored to have served on ...
. Mackenzie was not legally empowered to convene a court martial. So he charged his officers with making an investigation. They unanimously concluded that the three sailors were guilty and recommended their immediate execution, which took place at sea on December 1, 1842. Only 13 days later, ''Somers'' arrived in New York, where a naval court of inquiry was immediately ordered to investigate the affair. Mackenzie was completely exonerated at the court of inquiry and at a subsequent court martial. However the controversial incident drew nationwide attention and colored the remainder of his life. It was customary then to commend officers cleared at a court martial, but Mackenzie's court martial made very clear that it was not commending him. The entire affair resulted in a great sensation, and Mackenzie's conduct was as severely criticized by his opponents as it was ardently defended by his supporters. His fiercest detractor was the famous novelist and naval historian James Fenimore Cooper.


Naval historian and author

Mackenzie was also an accomplished author and naval historian. While his tours of duty in the navy were broadening, he also used several extended leaves to travel in Europe, where he mingled with other literary Americans including Henry Wadsworth Longfellow and fellow New Yorker Washington Irving, a lifelong friend. Mackenzie's first work, ''A Year in Spain, by a Young American'' (1829), made him known in America as well as in England. Other works followed: ''Popular Essays on Naval Subjects'' (1833), ''The American in England'' (1835), ''Spain Revisited'' (1836), ''Life of John Paul Jones'' (1841), ''Life of Commodore Oliver H. Perry'' (1841), and ''Life of Commodore Stephen Decatur'' (1846). Mackenzie also wrote a manuscript, ''A Journal of a Tour in Ireland, The Case of the 'Seiners; "Defence of A. S. Mackenzie", 1843.


Personal life

Mackenzie married Catherine Alexander Robinson (b. 1814), eldest daughter of
Morris Robinson Morris DeRhon Robinson (born March 18, 1969) is an American bass (voice type), bass opera singer and former All-American college football player who has performed with the Metropolitan Opera, at Carnegie Hall, at La Scala in Milan, Italy, at the ...
, a founder of the
Mutual Life Insurance Company of New York The Mutual Life Insurance Company of New York (also known as Mutual of New York or MONY) was the oldest continuous writer of insurance policies in the United States. Incorporated in 1842, it was headquartered at 1740 Broadway, before becoming a wh ...
. Together, they were the parents of: General Ranald Slidell Mackenzie, who, after a successful
Civil War A civil war or intrastate war is a war between organized groups within the same state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies ...
career, commanded the 4th Cavalry Regiment (United States), securing the line of settlement in
Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...
and throughout the West. Ranald Mackenzie was arguably the best Indian fighter of the American West. Another son was Lieutenant Commander
Alexander Slidell MacKenzie Alexander Slidell Mackenzie (April 6, 1803 – September 13, 1848), born Alexander Slidell, was a United States Navy officer, famous for his 1842 decision to execute three suspected mutineers aboard a ship under his command in the Somers Mutin ...
. According to a letter written by Captain D.W. Knox, USN (ret.) on July 1, 1938, in response to a query to the
Department of the Navy Navy Department or Department of the Navy may refer to: * United States Department of the Navy, * Navy Department (Ministry of Defence), in the United Kingdom, 1964-1997 * Confederate States Department of the Navy, 1861-1865 * Department of the ...
, "Commander MacKenzie died suddenly September 13, 1848, at his residence, near
Tarrytown Tarrytown is a village in the town of Greenburgh in Westchester County, New York. It is located on the eastern bank of the Hudson River, approximately north of Midtown Manhattan in New York City, and is served by a stop on the Metro-North Hu ...
, N.Y., of heart disease. The Department was notified of his death on September 14, by Captain Isaac McKeever,
Commandant Commandant ( or ) is a title often given to the officer in charge of a military (or other uniformed service) training establishment or academy. This usage is common in English-speaking nations. In some countries it may be a military or police ran ...
at New York, who stated that he had been informed of it by
Commodore Commodore may refer to: Ranks * Commodore (rank), a naval rank ** Commodore (Royal Navy), in the United Kingdom ** Commodore (United States) ** Commodore (Canada) ** Commodore (Finland) ** Commodore (Germany) or ''Kommodore'' * Air commodore ...
Matthew C. Perry Matthew Calbraith Perry (April 10, 1794 – March 4, 1858) was a commodore of the United States Navy who commanded ships in several wars, including the War of 1812 and the Mexican–American War (1846–1848). He played a leading role in the o ...
." He was a resident of
Scarborough, New York Briarcliff Manor () is a suburban village in Westchester County, New York, north of New York City. It is on of land on the east bank of the Hudson River, geographically shared by the towns of Mount Pleasant and Ossining. Briarcliff Manor ...
.


Published works

* Mackenzie, Alexander Slidell
(1915) ''Commodore Oliver Hazard Perry : famous American naval hero, victor of the battle of Lake Erie, his life and achievements'' (Akron, Ohio: Superior Printing Co.)

Mackenzie, Alexander Slidell (1840) ''The life of Commodore Oliver Hazard Perry.'' (New York, Harper) Volume 1Volume 2
* *


See also

* Alexander Slidell MacKenzie, Jr. Civil War Officer


References


Further reading

* Morison, Samuel Eliot, ''"Old Bruin": Commodore Matthew C. Perry, 1794-1858'' (1967) pp 144–62; strongly defends MacKenzie. * McFarland, Philip ''Sea Dangers: The Affair of the Somers'' (New York: Schocken Books, 1985), 308p., illus. {{DEFAULTSORT:Mackenzie, Alexander Slidell 1803 births 1848 deaths United States Navy officers United States Navy personnel who were court-martialed American naval historians American male non-fiction writers People from Briarcliff Manor, New York Historians from New York (state)