John, I'm thinking we are on the same paths since I also saw your name under the Dunning family inquiries and now Kieft.
My grandmother's name is: Gertrude Dunning Brown Sundberg. Her parents were: William Dunning & Cora Mabel Kieft, although I have seen Cora's middle name now as Gertrude too.
My Dunning side currently stops with George Henry Dunning.I know that Cora's father was named Robert Kieft, but have no knowledge of anything else.Can I read your post to believe that her mother might be this Gertrude Cora Kool?That would make sense as to how my grandma received her name.
It would be great if you would share what you know of this Robert Kieft and his wife with me.