#78530, b. 2 February 1817
- Father: William Allen b. 1771, d. 1824
- Mother: Sarah Holt
- Relationships: 2nd cousin 6 times removed of Sister Susan :-), 2nd cousin 8 times removed of My granddaughter Madison :-D, 2nd cousin 7 times removed of Cousin Sarah Louise :-)
- Christening: Mary Allen was christened on 2 February 1817 in Pakefield, Suffolk, England.