Abram Stevens Hewitt (July 31, 1822January 18, 1903) was an American politician, educator, ironmaking industrialist, and lawyer who was mayor of New York City for two years from 1887 to 1888. He also twice served as a U.S. Congressman from and chaired the Democratic National Committee from 1876 to 1877. The son-in-law of the industrialist and philanthropist Peter Cooper, Hewitt is best known for his work with the Cooper Union, which he aided Cooper in founding in 1859, and for planning the financing and construction of the first line of what would eventually develop into the New York City Subway, for which Early life Hewitt was born in Haverstraw, New York. His mother, Ann Gurnee, was of French Huguenot descent, while his father, John Hewitt, was from Staffordshire in England and had emigrated to the U.S. in 1796 to work on a steam engine to power a water plant in Philadelphia. Hewitt earned a scholarship to attend Columbia College. After graduating from the College in 1842, he taught mathematics there, and became a lawyer several years later. From 1843 to 1844, Hewitt traveled to Europe with his student, Edward Cooper, the son of industrialist entrepreneur Peter Cooper, and another future New York City mayor. During their return voyage, the pair were shipwrecked together. After this, Hewitt became "virtually a member of the Cooper family", and in 1855 married Edward's sister, Sarah Amelia. Career In 1845, financed by Peter Cooper, Hewitt and Edward Cooper started an iron mill in Trenton, New Jersey, the Trenton Iron Company, where, in 1854, they produced the first structural wrought iron beams, as well as developing other innovative products. Hewitt's younger brother, Charles, was a manager at the iron mill. Hewitt also invested in other companies, in many case serving on their boards. Hewitt was known for dedicated work for the U.S. government and exceptionally good relations with his employees. After his marriage to Sarah Cooper, Hewitt supervised the construction of the Cooper Union, Peter Cooper's free educational institution, and chaired its board of trustees until 1903. Political career In 1871, inspired by reformer Samuel J. Tilden, Cooper prominently campaigned to remove the corrupt "Tweed Ring", led by William M. "Boss" Tweed, from control of Tammany Hall, and to reorganize the Democratic Party in New York, which Tweed controlled for years through his political machine. Hewitt first ventured into electoral politics in 1874, when he won