Jacob Augustus Geissenhainer (August 28, 1839 – July 20, 1917) was an American lawyer and Democratic Party politician who represented New Jersey's 3rd congressional district in the United States House of Representatives from 1889 to 1895.
Author: "The Daily Times" (New Brunswick, NJ). Source: "Geissenhainer and Cozzens: Candidates for Congress and Assembly". November 3, 1894. Page 1. License: CC-PD-Mark PD-old-70-expired