Yes, the name is not a common one. About 30 years ago my aunt jotted down a list of my mother's side of the family. Years later these names were what guided me in my search. I also had an uncle who lived until 90 and he was the one who filled me in on some info on my great grandmother Iba/Schaefer. She is the Iba. I've only made contack with one of person searching that name and she has since passed.
I have an outline of a family tree put together from German church records that someone kindly gave to me, but I have not varified them. Your papers should do that. Do any of them say Shade on them?
Where have you been searching for info?
Please write when you can.