1781-Yes, date unknown
| CALVERT, William | |
| B: | 8 Jun 1781 |
| Thwaite, Yorkshire (North Riding), England | |
| D: | Yes, date unknown |
-Yes, date unknown
| PRESTON, Isobel | |
| D: | Yes, date unknown |
1749-Yes, date unknown
| CALVERT, George | |
| B: | 19 Aug 1749 |
| Thwaite, Yorkshire (North Riding), England | |
| M: | 25 Jul 1771 |
| Hardraw, Yorkshire (North Riding), England | |
| D: | Yes, date unknown |