See also
| Name: | Jacob UNDERWOOD |
| Sex: | Male |
| Father: | Jabez UNDERWOOD (c. 1842- ) |
| Mother: | Lucy ROBERTS (c. 1846- ) |
| Census | 2 Jun 1841 (age -29--28) | Not Born |
| Census | 30 Mar 1851 (age -19--18) | Not Born |
| Census | 8 Apr 1861 (age -9--8) | Not Born |
| Birth | c. 1869 | Yardley, Northamptonshire |
| Census | 2 Apr 1871 (age 1-2) | Dychurch, Bozeat, Northamptonshire |
| Census | 4 Apr 1881 (age 11-12) | |
| Census | 5 Apr 1891 (age 21-22) | |
| Census | 31 Mar 1901 (age 31-32) | |
| Census | 2 Apr 1911 (age 41-42) | |
| Census | 19 Jun 1921 (age 51-52) | |
| Census | 26 Apr 1931 (age 61-62) | |
| Census | 29 Sep 1939 (age 69-70) | |
| Death |