Marcus C. O'LEARY (b. April 26, 1842, d. date unknown)
Marcus C. O'LEARY (son of Cornelius O'LEARY and Jane GRIFFEN) was born April 26, 1842 in Milan, Ohio, and died date unknown in Enterprise,Erie, OH.
More About Marcus C. O'LEARY: Bijrth: born on the family farm in Milan, OH. Census 1: 1880, Oxford, Erie, OH with brother Thomas and family. Census 2: 1910, Oxford, Erie, OH listed as a boarder. Census 3: 1920, Milan, Erie, OH lodger. Census 4: 1930, Milan, Erie, OH lodger. Marital Status: Never married. No issue.. Military service: 1864, enlisted in Union Army Co F, 145th O.N. Guards, Discharged 08-24-1864.