James Columbus Hamblin was born 24 September 1912 in Eagar, Apache County, Arizona, United States to Duane Hamblin (1863-1936) and Susan Virginia Greer (1869-1951) and died 2 April 1973 Beaverhead County, Montana, United States of unspecified causes. He married Mona Vivian Greer (1915-1985) 1932 in Phoenix, Maricopa County, Arizona, United States.
Children
| Name | Birth | Death | Joined with |
| Hazel Jean Hamblin (1933-1990) | |||
Siblings
| Name | Birth | Death | Joined with |
| MIldred Hamblin (1890-1905) | |||
| Wilmirth Hamblin (1894-1977) | |||
| Geneva Hamblin (1898-1967) | |||
| Polly Ann Hamblin (1900-1918) | |||
| Melba Earline Hamblin (1904-1966) | |||
| Ina Louise Hamblin (1907-1935) | 8 June 1907 Eagar, Apache County, Arizona, United States | 21 September 1935 Rehoboth, McKinley County, New Mexico, United States | David Owen Chapman (1902-1983) |
| William Grant Hamblin (1909-1980) | |||
| James Columbus Hamblin (1912-1973) | 24 September 1912 Eagar, Apache County, Arizona, United States | 2 April 1973 Beaverhead County, Montana, United States | Mona Vivian Greer (1915-1985) |