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- [S440] Ancestry.com, 1900 United States Federal Census, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2004;), Year: 1900; Census Place: Honey Creek, Adams, Illinois; Roll: 235; Page: 13B; Enumeration District: 0109; FHL microfilm: 1240235.
Record for John C Yeargain
http://search.ancestry.com/cgi-bin/sse.dll?db=1900usfedcen&h=9816025&indiv=try
- [S436] Ancestry.com, 1910 United States Federal Census, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2006;), Year: 1910; Census Place: Honey Creek, Adams, Illinois; Roll: T624_229; Page: 11A; Enumeration District: 0012; FHL microfilm: 1374242.
Record for John C Yeargain
http://search.ancestry.com/cgi-bin/sse.dll?db=1910USCenIndex&h=112417442&indiv=try
- [S11] Ancestry.com, 1920 United States Federal Census, (Name: The Generations Network, Inc.; Location: Provo, UT, USA; Date: 2005;), Year: 1920; Census Place: Honey Creek, Adams, Illinois; Roll: T625_296; Page: 1A; Enumeration District: 12; Image: 207.
Record for John C Yeargain
http://search.ancestry.com/cgi-bin/sse.dll?db=1920usfedcen&h=8513992&indiv=try
- [S461] Jordan Dodd and Liahona Research, comp., Illinois, Marriage Index, 1851-1900, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2005;).
Record for John C Yeargain
http://search.ancestry.com/cgi-bin/sse.dll?db=IllinoisMarriages_ga&h=654403&indiv=try
- [S418] Wilcox, David F, Quincy and Adams County History and Representative Men Vol II, (Name: Lewis Publishing Company; Location: Chicago and New York; Date: 1919;), Section about John Yeargain pages 831-832 Section about Thomas M Yeargain pages 1080-1082.
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