| Jacob Cummer(1767 - 1841) | |
| Elizabeth Fisher(1775 - 1854) |
| Robert Penrose Irwin | Sarah Cummer |
|
b. 1805-02-25, Newmarket, York Co., Upper Canada
d. 1884-05-20, Aurora, York, Ontario, Canada
occ.
|
b. 1806-05-28, Willowdale, York Co., Upper Canada
d. 1838-06-28, Willowdale, York Co., Upper Canada
occ.
|
| Charles IrwinSamuel IrwinWilliam IrwinRobert Penrose Irwin [Twin]Sarah Irwin [Twin] |