11 Maria daughter of Joseph and Maria Blackgrave
Source: London Metropolitan Archives, St Mary at Lambeth, Lambeth,
Composite register: baptisms Oct 1797 - Dec 1812, baptisms at Stockwell Chapel
Jan 1798 - Dec 1812, baptisms at the Workhouse Jan - Apr 1804, Sep - Dec 1812,
burials Oct 1797 - Dec 1812, P85/MRY1/349
Source: Ancestry.com. London, England, Church of England Baptisms,
Marriages and Burials, 1538-1812