COOPER, Thomas Valentine, a Representative from Delaware County; born, January 16, 1835 in Cadiz, Harrison County, Ohio; first lieutenant, Company C, 26th and 4th Regiments, Pennsylvania Volunteer Infantry (1861-1864, Civil War); editor, Delaware County American (1855-1909); elected, delegate, Republican Convention (1860); appointed, director of government printing, Soldier’s Journal (1865); elected as a Republican to the Pennsylvania House of Representatives for the 1870 and 1872 terms; unsuccessful campaign for reelection to the House (1871); not a candidate for reelection to the House (1873); elected, Pennsylvania State Senate (1874-1889); elected, Senate President pro tempore (1877); presidential appointee, collector, Port of Philadelphia (1889-1894); reelected to the House to serve the 1901, 1903, 1905, 1907, and 1909 terms; elected, Majority Leader (1901-1902, 1905-1906); died while in office, December 19, 1909 in Media, Delaware County, Pennsylvania; interred, Media Cemetery, Media, Delaware County, Pennsylvania.
Cooper, Thomas V. Campaign of '84: Biographies of James G. Blaine, the Republican candidate for president, and John A. Logan, the Republican candidate for vice-president, with a description of the leading issues and the proceedings of the national convention. Burlington, Iowa: I.F. Segner, 1884.
Cooper, Thomas V. Pennsylvania’s Memorial Days, September 11 and 12, 1889: The 26th Pennsylvania Volunteers. Self-published, ca. 1889
Cooper, Thomas V. American Politics (non-partisan) from the beginning to date. Philadelphia: Fireside Publishing Company, 1892.