"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDC5-KMH : accessed 24 July 2015), Steve Mader in household of Charles Mader, Kenterville, Idaho, Idaho, United States; citing sheet 3B, family 62, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,292.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VY4L-5T9 : accessed 24 July 2015), Steve Mader, Keuterville Election Precinct, Idaho, Idaho, United States; citing enumeration district (ED) 25-31, sheet 4A, family 68, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 747.