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Male Fred Billerbeck Click to view Fred Billerbeck in the family tree

1   Fred's father was Julius Billerbeck and his mother was Ginderina Cramer. He had three brothers and three sisters, named William Julius, Frank, Henry, Emma, Louise and Mathilda.1 

Family Details of Fred's family with Wilhemina Thumb

1 phelps.FTW @ Tree #0105
Further sources/citations:
World Family Tree Vol. 3, Ed. 1 @ Tree #0461, 0461.ftw