| Sources |
- [S2545] South Dakota, Potter County, FCR: Potter Co., SD 1900, (http://www.ancestry.com: National Archives and Records Administration, 2004), T623, roll 1553, Logan, enumeration district (ED) 280, sheet 3B, p. 196, dwelling 54, family 55, Spencer Peterson, accessed 11 Dec 2025 (Reliability: 3).
- [S1241] Find A Grave, Find A Grave, ((http://www.findagrave.com/)), accessed 11 Dec 2025), memorial page for Spencer A Peterson (14 Feb 1856–26 Apr 1923), Find a Grave Memorial ID 145143471; citing Springs Cemetery, Fairview Township, Potter County, South Dakota, USA; Maintained by: Find a Grave. (Reliability: 3).
- [S2539] South Dakota Department of Health, South Dakota, U.S., Death Index, 1879-1955, ((http://www.ancestry.com : 2004)), accessed 11 Dec 2025), Spencer A. Peterson, 1923, Edmunds County; citing certificate no. 86113. (Reliability: 3).
- [S2544] FamilySearch, Minnesota, U.S., Marriages Index, 1849-1950, ((http://www.ancestry.com : 2011)), accessed 11 Dec 2025), Peterson-Walton, 1877, Fillmore County; citing FHL Film No. 1316805. (Reliability: 3).
|