Perez Mason Stewart (August 2, 1858 – June 15, 1924) was an American businessman, inventor and politician from New York.

Life He was born on August 2, 1858, in Boston, Massachusetts. The family moved to New York City in 1860, and later to Hoboken, New Jersey. He went to live in New York City in 1875. He graduated from Columbia College in 1880. Afterwards he engaged in the construction of houses and apartment buildings.The New York Red Book by Edgar L. Murlin (James B. Lyon, Albany, 1900; pg. 176f)

He also entered politics as an Independent Democrat. In 1896, he supported the Gold Democrats. In November 1897, he ran in the 19th District of New York County on the Citizens Union ticket for the New York State Assembly. His opponents were the incumbent Republican Robert Mazet and Tammany Hall nominee Solomon C. Weill. Stewart received the largest number of votes,"The Citizens' Union Wins" in the New York Times on November 10, 1898 but the election inspectors made a false vote count and certified the election of Weill who was seated at the beginning of the session of the 121st New York State Legislature in January 1898. Stewart contested the election in the courtsThe Stewart–Weill Contest in the New York Times on January 11, 1898"Citizens' Election Appeals" in the New York Times on March 1, 1898"Nineteenth District Vote" in the New York Times on May 13, 1898 Weill died on April 28, before the case was decided."Death List of a Day; Solomon C. Weill" in the New York Times on May 1, 1898 The case eventually reached the New York Court of Appeals, which ruled in favor of Stewart who was seated in the State Assembly at the beginning of the special session on July 11. He did not run for re-election in November 1898, and Mazet was again elected to the seat. At the next election, in November 1899, Stewart ran again on the Citizens Union ticket and accepted the endorsement of Tammany Hall."The Fight Against Mazet" in the New York Times on November 1, 1899 He defeated Mazet,"The Defeat of Mr. Mazet" in the New York Times on November 8, 1899 and was again a member of the State Assembly in 1900. In that year, he supported William Jennings Bryan for president.

Stewart was Manhattan Superintendent of Buildings from January 1, 1902,"Superintendent of Buildings Chosen" in the New York Times on November 30, 1901 to April 29, 1903, when he was dismissed by Borough President Jacob A. Cantor."Perez M. Stewart is Summarily Removed" in the New York Times on April 30, 1903

He died on June 15, 1924, in Pasadena, California.

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