My great aunt Amy Halstead married Herbert Den Otter the oldest of that family and had several children. The daughter Gladys also married a great uncle of mine also. Check out my family tree, Heim, Strait Family tree. Amy was a sister of my grandmother, Maude Halstead Heim. I have tracked Aunt Amys children to as close as I can. This is all that I know. I never met Herbert Den Otter, but my Uncle Wendell is still living and personally knew him. I hope this helps.
Star Hein Theodore, firstname.lastname@example.org