| Father | Male William Osman McDUFFEE |
| Born | 12 Sep 1859 | Whitefield, Coos, New Hampshire |
| Died | 7 Aug 1934 | Tilton, Belknap, New Hampshire |
| Buried | 1934 | Park Cemetery, Tilton, Belknap, New Hampshire |
| Married | 11 Sep 1883 | |
| Father | Jacob McDUFFEE | F99 Group Sheet | |
| Mother | Martha Bradbury HOPKINSON | F99 Group Sheet | |
| Mother | Female Mary Jane DE RINZEY |
| Born | 24 Sep 1860 | Durham, Ontario |
| Died | 1953 | Malden, Middlesex, Massachusetts |
| Buried | ||
| Father | ||
| Mother | ||
| Child 1 | Female Edith Mabelle McDUFFEE |
| Born | 30 Aug 1884 | Lawrence, Essex, Massachusetts |
| Died | Aug 1980 | New London, Connecticut |
| Buried | ||
| Spouse | Frederick Valentine KOLB | F294 | |
| Married | 29 Jun 1911 | Malden, Middlesex, Massachusetts |
| Child 2 | Male Frank Howard McDUFFEE |
| Born | 30 Jun 1886 | Lawrence, Essex, Massachusetts |
| Died | 3 Jan 1957 | Malden, Middlesex, Massachusetts |
| Buried | ||
| Spouse | Stella CHANDLER | F295 | |
| Married | 2 Jun 1912 | |
| Spouse | Mary E. TAFT | F296 | |
| Married | 10 Oct 1931 | Portsmouth, Rockingham, New Hampshire |
| Child 3 | Female Evelyne Annie McDUFFEE |
| Born | 23 Jun 1891 | Lawrence, Essex, Massachusetts |
| Died | 4 Feb 1976 | Holmes Beach, Manatee, Florida |
| Buried |