↑ "United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X77Q-8XZ : accessed 26 Oct 2014), Dale W Peterson in household of August R Peterson, Randolph, Riley, Kansas, United States; citing enumeration district (ED) 0007, sheet 2A, family 40, NARA microfilm publication T626, roll 718.
↑ "United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VR2Q-YXR : accessed 26 Oct 2014), Dale Peterson in household of August R Peterson, Randolph, Jackson Township, Riley, Kansas, United States; citing enumeration district (ED) 81-7, sheet 3A, family 68, NARA digital publication of T627, roll 1256.
"United States Social Security Death Index," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/J547-N62 : accessed 21 Oct 2014), Dale W Peterson, 09 Sep 1991; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VR2Q-YXR : accessed 21 Oct 2014), Dale Peterson in household of August R Peterson, Randolph, Jackson Township, Riley, Kansas, United States; citing enumeration district (ED) 81-7, sheet 3A, family 68, NARA digital publication of T627, roll 1256.