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 for birth and parent Information
date:
[Ref: GroffCL GROFF p47],
parents:
[Ref: GroffCL GROFF p47]
Sources with Information about marriage to Catharine SCHNADER
date:
[Ref: GroffCL GROFF p47]
Sources with Information about marriage to Barbara LUDWIG
date:
second marriage of Benjamin [Ref: GroffCL GROFF p47]