| Sources  | 
- [S16]  1920 United States Federal Census, Ancestry.com, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;), Database online. Year: 1920; Census Place: Election District 10, Fremont, Wyoming; Roll: T625_2026; Page: 22B; Enumeration District: 50; Image: .
 
Record for Martin Person 
 
  
- [S4]  1910 United States Federal Census, Ancestry.com, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2006;), Database online. Year: 1910; Census Place: Riverton, Fremont, Wyoming; Roll: T624_1745; Page: 5A; Enumeration District: 59; Image: 417.
 
Record for Martin Pearson 
  
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