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- [S472] Ancestry.com, Michigan, County Marriage Records, 1822-1940 [database on-line]. Lehi, UT, USA:, Film No. 000947223, Ancestry.com.
- [S472] Ancestry.com, Social Security Applications and Claims, 1936-2007., Ancestry.com.
- [S472] Ancestry.com, Morris Groff Family Tree, Ancestry.com.
- [S331] Find-A-Grave, MEMORIAL ID: 67463872.
- [S472] Ancestry.com, The Library of Michigan; Michigan Death Records Project; Rolls: 1-302; Archive Barcode/Item Number: 30000008533535; Roll Number: 207; Certificate Number: 638, Ancestry.com.
- [S448] 1910 Federal Census, Bay City, Bay, Michigan, ED 37, Page 11A, Dwelling 206.
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