"England Births and Christenings, 1538-1975," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JQND-MF3 : accessed 22 December 2014), Margaret Crawford, 08 Feb 1761; citing SAINT NICHOLAS PARISH REG AND NONCONF , NEWCASTLE UPON TYNE, NORTHUMBERLAND, ENGLAND, reference ; FHL microfilm 1,068,902.