Mary was born about 1841. She passed away about 1907.
Sources
middle name confirmed in daughter's death certificate "Illinois, Cook County Deaths, 1878-1994," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QV9J-C6NQ : 16 March 2018), Mary Adelade Lawrence in entry for Florence Pearl Cummings Partridge, 23 Aug 1963; citing Chicago, Cook, Illinois, United States, source reference , record number , Cook County Courthouse, Chicago; FHL microfilm .
Findagrave - maiden name is probably incorrect. All other records indicate a maiden name of Lawrence.
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