Individual Details
Mary Sidgwick
( - )
Families
| Spouse | William Russell Horsfall |
| Child | Frances Nichola Horsfall |
| Child | Katharine Anne Horsfall |
| Child | Lucy Mary Horsfall |
| Child | William Sidgwick Horsfall |
| Child | Victoria Sophia Horsfall |
| Child | Derek Russell Horsfall |
| Father | Frank Sidgwick |
| Mother | Mary Christina Coxhead |