Barbara Kotzer1

     Barbara Kotzer married John William Gannon, son of William Gannon and Ellen Marie Dorsey, on July 25, 1903 in Chicago, Cook County, Illinois. Note that Barbara's name is given as Mary in the marriage record.1

Children of Barbara Kotzer and John William Gannon

ChartsPater Familias O'Dea Descendant Chart (Indented)
Thomas (Darby) O'Dea Descendant Chart (Indented)
Last Edited26 Jan 2021


  1. [S433] Illinois, Cook County Marriages, 1871-1968, online, : 11 March 2018), John W. Gannon and Mry Kotzer, 25 Jul 1903.
  2. [S95] June 23, 1910 Census Record, Provo, Utah, Roll: T624_275; Page: 20B; Enumeration District: 1272; FHL microfilm: 1374288.
  3. [S88] Illinois, Cook County Birth Certificates, 1878-1922, online, : 18 May 2016), George Gannon, 26 Sep 1913; Chicago, Cook, Illinois, United States, reference/certificate 6616, Cook County Clerk, Cook County Courthouse, Chicago; FHL microfilm 1,288,294.