It seems Oscar Carlos went by Carl.
Their son George died in 1940 in Vanderbilt, MI.
1870 census, Shiawassee MI: Oscar C Moore, 39, farmer, land worth $9000, personal property worth $1600; Mary A. Moore, 36, keeping house; George, 17, at school; Henry C, 14; Oscar, 10; Minnie, 4.
"Michigan, Death Certificates, 1921-1952," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KF79-J9N : accessed 11 Jun 2014), Oscar Moore in entry for George Augustus Moore, 22 Oct 1940; citing Vanderbilt, Otsego, Michigan, United States; 02899; FHL microfilm 001973070.
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