http://genuki.cs.ncl.ac.uk/Transcriptions/DUR/SUN1775.html
"England Marriages, 1538–1973 ," index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/NL8M-TYP : accessed 22 December 2014), Thomas Gilhespy and Margaret Crawford, 04 Sep 1782; citing Sunderland,Durham,England, reference ; FHL microfilm 91,114, 91,116.