My great grandmother (Wilhelmina Bil Wendelaar) married Germt Bosma in 1901 in Winsum, Groningen. I have met one of their children, John (my grandmothers 1/2 brother) and his wife Hilda came to the United States in the mid 1950's with their two children Germt and Margaret who are my cousins.

My grandfather Berend Jonker (his parents were Tonnis Jonker and Frouwe Brouwer)he was born in Warrfum Parish on August 31, 1876, he and his brother John came to the United States on May 31, 1900, and married Geziena Wendelaar June 17, 1911, she came to the United States in 1910, do you have any
information or knowledge of the Jonker family.