Dr Henry P Quincy was born 27 October 1838 in Plymouth, Plymouth County, Massachusetts, United States to Edmund Quincy (1808-1877) and Lucilla Pinckney Parker (1810-1860) and died 11 March 1899 Dedham, Norfolk County, Massachusetts, United States of unspecified causes. He married Mary Gardiner Adams (1845-1928) 1867 in Braintree, Norfolk County, Massachusetts, United States.
Children
| Name | Birth | Death | Joined with |
| Baby Quincy (1878-1878) | |||
| Baby Quincy (1880-1880) | |||
| Dorothy Adams Quincy (1885-1939) | |||
| Eleanor Adams Quincy (1888-1927) | |||
Siblings
| Name | Birth | Death | Joined with |
| Edmund Quincy (1834-1894) | |||
| John Harvard Quincy (1836-1887) | |||
| Henry Parker Quincy (1838-1899) | 27 October 1838 Plymouth, Plymouth County, Massachusetts, United States | 11 March 1899 Dedham, Norfolk County, Massachusetts, United States | Mary Gardiner Adams (1845-1928) |
| Mary Quincy (1841-1897) | |||
| Morton Quincy (1845-1848) | |||
| Arthur Bromfield Quincy (1847-1849) | |||
Residences
Footnotes (including sources)