Her half sister Sarah Langstaff, daughter of Mathew, lived with her in London until her death. Mary's husband, Henry Burnett married a Sarah Langstaff after her death but this could not have been her half sister because she died one year before Henry's second marriage.
Marriages
Name: Henry Cuthbertson Burnett
Spouse's Name: Mary Greenwell
Event Date: 20 Jan 1804
Event Place: Saint Michael Spurriergate, York, Yorkshire,England
Indexing Project (Batch) Number M00617-3
System Origin: England-ODM
GS Film number: 990877
Sources
"England Marriages, 1538–1973 ," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NL6F-VZG : 10 February 2018), Henry Cuthbertson Burnett and Mary Greenwell, 20 Jan 1804; citing Saint Michael Spurriergate,York,York,England, reference , index based upon data collected by the Genealogical Society of Utah, Salt Lake City; FHL microfilm 990,877.
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