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

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

Family Details of Frank's family with Louise Thumb

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