John Calvin Coolidge was born 7 September 1906 in Northampton, Hampshire County, Massachusetts, United States to John Calvin Coolidge (1872-1933) and Grace Anna Goodhue (1879-1957) and died 31 May 2000 Lebanon, Grafton County, New Hampshire, United States of unspecified causes. He married Florence Trumbull (1904-1998) 23 September 1929 in Plainville, Hartford County, Connecticut, United States.
Children
| Name | Birth | Death | Joined with |
| Cynthia Coolidge (1933-1989) | |||
| Lydia Coolidge (1939-2001) | |||
Footnotes (including sources)
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