Sources |
- [S1207] https://www.findagrave.com, Obituary, Pierce, William "Bill", 83, (https://www.findagrave.com/memorial/83761593/william-o-pierce), none. (Reliability: 2).
- [S1296] https://www.findagrave.com, Headstone, Pierce, W. O. Bill and Evelyn M., (https://www.findagrave.com/memorial/83761593/william-o-pierce), none. (Reliability: 2).
- [S171] Ancestry.com, 1940 United States Federal Census, Clay City, Illinois, (District 13-4) (Township), image 25, page 13a, (https://www.ancestry.com/interactive/2442/M-T0627-00769-00087?backurl=https%3a%2f%2fsearch.ancestry.com%2fsearch%2fdb.as) (Reliability: 3).
- [S1206] Ancestry.com, 1930 United States Federal Census, Clay City, Clay County, Illinois, (District 0004) (Township), image 01, page 1a, (https://www.ancestry.com/interactive/6224/4584337_00604?backurl=https%3a%2f%2fsearch.ancestry.com%2fsearch%2fdb.aspx%3fd), none. (Reliability: 2).
- [S1205] https://www.findagrave.com, Headstone, Pierce, Gladys and William H., (https://www.findagrave.com/memorial/24068238/mary-gladys-pierce_badger), none. (Reliability: 2).
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