1841 Birth:821,2276 Birth year estimated from age (9 years) in 1850 census enumeration, information presumably given by his mother Margaret McCoy. (Age in 1880 census enumeration would indicate a birth in 1843). Birth place of Porter County, Indiana is assumed as his parents were enumerated there in both the 1840 and 1850 census enumerations, the latter household led by the widow Margaret McCoy.

1850 U.S. Census:821 George W. enumerated in the household of his widowed mother Margaret McCoy in Porter Township, Porter County, Indiana as a male, age 9, in school, born in Indiana.

1880 U.S. Census:2305
Tehama County, California (Red Bluff Township)
Enumerated 15 June 1880
G. W. McCoy •• white, male, 37, married, farmer, born in Indiana, father born in Kentucky, mother born in Kentucky
Sarah •• white, female, 32, wife, married, keeping house, born in Oregon, father born in Missouri, mother born in Missouri
William •• white, male, 12, son, single, attended school within the year, born in California, father born in Indiana, mother born in Oregon
Matilda •• white, female, 14, daughter, single, born in California, father born in Indiana, mother born in Oregon
Luther •• white, male, 8, son, single, attended school within the year, born in California, father born in Indiana, mother born in Oregon
Henry •• white, male, 3, son, single, at home, born in California, father born in Indiana, mother born in Oregon

1885 Tehama County Directory:2020 G. C. McCoy, wool grower, Jefferson nr Pine, Red Bluff, California