An Illustrated Congressional Manual. The United States Red Book, 1896, (detail), Collection of U.S. House of Representative

ERDMAN, Constantine Jacob, (grandson of Jacob Erdman), a Representative from Pennsylvania; born in Upper Saucon Township, near Allentown, Lehigh County, Pa., September 4, 1846; attended the common schools of the district and a classical school in Quakerstown, Pa.; was graduated from Pennsylvania College, Gettysburg, Pa., in 1865; studied law; was admitted to the bar in 1867 and practiced in Allentown, Pa.; elected district attorney in 1874; adjutant of the Fourth Regiment, National Guard of Pennsylvania, during the riots at Reading in 1877; elected as a Democrat to the Fifty-third and Fifty-fourth Congresses (March 4, 1893-March 3, 1897); was not a candidate for reelection in 1896; resumed the practice of law in Allentown; trustee of Muhlenberg College at Allentown; president of the Coplay Cement Manufacturing Co., the Allentown & Coopersburg Turnpike Co., and the Allen Fire Insurance Co. for many years; died in Allentown, Pa., January 15, 1911; interment in Fairview Cemetery.