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Marriage:
Bibliography
  1. Groff, Clyde L, Walter B Groff, Jane Evans Best, The Groff Book, Ronks, PA: Groff History Associates, 1985. NYPL APV (Groff) 86-1589 v1. Information from this source tagged as [Ref: GroffCL GROFF p[0-9]*].

Sources with Information about marriage to Michael WITWER
names:
[Ref: GroffCL GROFF p47]
Research Notes:



Pedigree of Margaret BERK
Margaret BERK



Descendants of Margaret BERK
1. Margaret BERK m. Michael WITWER
m. Michael WITWER father: David WITWER mother: Mary REIFF