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We'd love to help - Please provide enough details that we can understand her and what you know about her.
what is her name, dates, PID in FamilySearch Family Tree?
In addition to FamilySearch, I like to build a tree at Ancestry & see what hints the search algorithms come up with.
Build a timeline & decide what you really, really know about her.
Work one generation forward and try to find more information in records of her children and grandchildren.
Search local and family histories at Google books and Hathi Trust.
The community can help you more if you can provide what details you do know.