John P. Corcoran, b. 20 May 1850 in Boyle, County Roscommon, Ireland, d. 29 May 1899 in Detroit, Wayne County, Michigan, son of John Corcoran & Eliza McMahon. He married Frances E. Harrington in 1870.
John William Corcoran, b. 14 Jun 1853 in Batavia, Monroe County, New York, d. 4 Aug 1904 in Clinton, Worcester County, Massachusetts, son of James P. Corcoran & Catherine Donnelly. He married Margaret Josephine McDonald on April 28, 1881 in Boston, Suffolk County, Massachusetts.