↑ "United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCYW-56Q : 12 April 2016), Amos Clark in household of Erastus Clarke, Collins, Erie, New York, United States; citing family 522, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
↑ "New York State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K63Y-Q5Q : 13 March 2018), Amos Clark, E.D. 2, North Collins, Erie, New York, United States; citing p. 20, line #27, family #6, county clerk offices, New York; FHL microfilm 825,682.
↑ "United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M46R-19H : 12 April 2016), Amos Clark, Missouri, United States; citing p. 51, family 332, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,293.
↑ "United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6XT-Y2J : 7 September 2017), Ames Clark, Bear Creek, Montgomery, Missouri, United States; citing enumeration district ED 108, sheet 18B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0705; FHL microfilm 1,254,705.
↑ "United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M3ZT-JXK : accessed 4 December 2018), Amos R Clark, Bear Creek Township (north part), Montgomery, Missouri, United States; citing enumeration district (ED) 59, sheet 9A, family 179, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,876.