"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X7WL-JBQ : accessed 31 October 2021), Otto H Schmidt, Castle Rock, Douglas, Colorado, United States; citing enumeration district (ED) ED 8, sheet 2B, line 52, family 53, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 232; FHL microfilm 2,339,967.
"United States Census, 1940," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:VR6W-VLB : 4 January 2021), Otto Schmidt, Castle Rock, Douglas, Colorado, United States; citing enumeration district (ED) 18-4, sheet 1B, line 58, family 18, 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 460.
Find a Grave, database and images (https://www.findagrave.com/memorial/28440083/otto-h-schmidt : accessed 31 October 2021), memorial page for Otto H Schmidt (1888–1970), Find A Grave: Memorial #28440083, citing Cedar Hill Cemetery, Castle Rock, Douglas County, Colorado, USA ; Maintained by Katy C (contributor 47017921) .
Is Otto your ancestor? Please don't go away! Login to collaborate or comment, or ask our community of genealogists a question.