"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8SJ-69D : 16 July 2017), Adam Amstutz in household of Jonas Amstutz, Riley Township, Putnam, Ohio, United States; citing enumeration district ED 142, sheet 494C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 1061; FHL microfilm 1,255,061.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM6P-L8Y : accessed 8 September 2018), Adam Amstutz, Riley Township Pandora village, Putnam, Ohio, United States; citing enumeration district (ED) 73, sheet 4B, family 61, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,316.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLN8-S3H : accessed 8 September 2018), Adam Amstutz, Riley, Putnam, Ohio, United States; citing enumeration district (ED) ED 83, sheet 2B, family 35, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1226; FHL microfilm 1,375,239.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KWLC-1BK : 15 March 2018), Adam Amstutz, Riley Township, Putnam, Ohio, United States; citing enumeration district (ED) 69-24, sheet 5B, line 80, family 81, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 3133.