↑1900 Census: Title: 1900 United States Federal Census Original data - United States of America, Bureau of the Census. Twelfth Census of the United States, 1900. Washington, D.C.: National Archives and Records Administration, 1900. T623, 18,
Page: Year: 1900; Census Place: James, Bibb, Alabama; Roll: T623_2; Page: 16B; Enumeration District: 4. Ancestry Record 7602 #77186592 (accessed before 12 December 2014),
Birth date: May 1832 Birth place: Alabama Residence date: 1900 Residence place: Precinct 4 James, Bibb, Alabama.
↑1900 Census: Title: 1900 United States Federal Census Original data - United States of America, Bureau of the Census. Twelfth Census of the United States, 1900. Washington, D.C.: National Archives and Records Administration, 1900. T623, 18,
Page: Year: 1900; Census Place: Grant, Massac, Illinois; Roll: T623_329; Page: 12B; Enumeration District: 50. Ancestry Record 7602 #37063748 (accessed before 12 December 2014),
Birth date: Sep 1880 Birth place: Illinois Residence date: 1900 Residence place: Grant Precinct, Massac, Illinois.
↑Family Tree record for Edmond Duff: Ancestry Member Family Tree,
Page: Database online. Note: Data: Text: Record for Edmond Duff Ancestry Profile.
↑Family Tree record for Mary Ann Sr. Clark: Ancestry Member Family Tree,
Page: Database online. Note: Data: Text: Record for Mary Ann Sr. Clark