My ancestor was Jan Eijlerdtsen, born October 24, 1697 in Sappemeer, Province of Groningen, The Netherlands.
He married Ebeltje Koops/Jacobs at Sappemeer February 10, 1725/26.
He worked aboard ship.
Sappemeer Churchmembers 1750 - Ebeltje Koops, housewife of Jan Eilderts. He was clearly away on his ship at the time.
One known child - Eildert Jans, born Bef. July 25, 1728 in Sappemeer.
I would be grateful to hear from anyone researching these surnames or who knows anything about Dutch surnames and/or naming patterns.