- [S51] 1900 U.S. Federal Enumeration Census for Warren County, Illinois.
- [S58] Illinois, Genealogical Society Cemetery Committee of the Warren County. Tombstone Inscriptions -- Kelly Township, Warren County, Illinois. Comprising Hope Cemetery, Terpening Cemetery, Miles Cemetery, Potter Cemetery, Private Cemeteries.
- [S62] Richardson and Pearce Family Information. Bill Pearce.
- [S71] Chickasaw County Historical Society, Cemeteries in Chickasaw and Surrounding Counties, Volume II.
- [S140] Family File of John Murray Richardson. Alan Richardson, October 1999.
- [S156] Knox County, Illinois marriages.
- [S171] Obituary of A. S. Richardson.
- [S207] Celebrate Golden Wedding Anniversary, wedding anniversary, The Alexis Argus, July 3, 1919.
- [S208] 1880 U.S. Federal Enumeration Census for Taylor County, Missouri.
- [S209] 1895 IA State Census for Taylor County, Iowa.
- [S222] Vance Nixon, "Alvah S. Richardson Ancestral File #1 submitted by V. Nixon", Ancestral File.
- [S223] P.O. Box 38, Leamington, UT 84638 K. Evers, "Alvah S. Richardson Ancestral File #2", Ancestral File.
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- [S403] 1880 U.S. Federal Enumeration Census for Walla Walla County, Washington.
- [S404] Mrs. G. F. Lyddon, INDIV Kimminau Family Archives.
- [S523] 1860 U.S. Federal Enumeration Census for Mercer County, Illinois.
- [S553] Potter Cemetery, Kelly Township, Warren County, Illinois (Warren County, Illinois).
- [S584] 1910 U.S. Federal Enumeration Census for Polk County, Iowa.
- [S600] 1880 U.S. Federal Enumeration Census for Ringgold County, Iowa.
- [S687] 1900 U.S. Federal Enumeration Census for Livingston County, Missouri.
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- [S743] 1900 U.S. Federal Enumeration Census for Rio Blanco County, Colorado.
- [S746] 1900 U.S. Federal Enumeration Census for Fulton County, Illinois.
- [S761] Iowa Work Projects Administration (WPA) 1930's Graves Registration Survey, http://iowawpagraves.org
- [S1059] 1925 IA State Census for Jasper County, Iowa.
- [S1060] 1910 U.S. Federal Enumeration Census for Pottawattamie County, Iowa.
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- [S1184] 1880 U.S. Federal Enumeration Census for Pottawattamie County, Iowa.
- [S1197] 1885 IA State Census for Taylor County, Iowa.
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- [S1509] Union County, Iowa Marriages.
- [S1516] Taylor County, Iowa Marriages.
- [S1539] Christine W. (Richardson) Pippitt Death Certificate. (1934).
- [S1567] Ringgold County, Iowa Marriages.
- [S1574] Pliny Richardson family bible.
- [S1612] Mrs. Caroline Baxter, obituary, Unidentified Newspaper, 1942.
- [S1626] Cass County, Iowa Marriages.
- [S1627] Cedar County, Iowa Marriages.
- [S1633] David E. Routh, Obituary, The Clearfield Enterprise, May 4, 1944.
- [S1688] Charles Franklin Lyddon, obituary, The Clearfield Enterprise, March 15, 1923.
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- [S1695] 1930 U.S. Federal Enumeration Census for Custer County, Nebraska.
- [S1739] Adair County, Iowa Marriages.