Female Wilhemina Thumb Click to view Wilhemina Thumb in the family tree

1   Wilhemina is no longer alive.1 

Family Details of Wilhemina's family with Fred Billerbeck

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