| Father | John De Whalesborough (1369 - 1418) |
| Mother | Joan Raleigh (1372 - 1436) |
| Sibling | Margery Anne De Whalesborough (1381 - 1439) |
| Sibling | Elizabeth Whalesborough (1406 - 1468) |
| Sibling | Joan Whalisborough (1401 - 1458) |
| Sibling | Ismayne Whalesborough (1402 - 1441) |
| Sibling | Thomas Whalesborough Sheriff of Cornwall (1403 - 1481) |
| Sibling | Anne De Whalesborough (1405 - 1467) |
| Sibling | Alice Whalesborough (1412 - 1471) |
| Sibling | William Whalesborough (1388 - ) |
| Sibling | Robert Whalesborough ( - ) |
| Sibling | Elizabeth Whalesborough (1402 - ) |