Thanks, Danielle. I can't say I have ever met any Schellins out here where I live (California). I don't know if it might help but my grandmother, Minnie Helen Alfrieda, was born on April 8, 1896.She was the youngest of the family, so her brothers would have earlier birth years.I think Bill and Marilyn might have birthdates between 1910 and 1930.
By the way, she was quite long-lived--she died of old age at 96! Do you have long-lived family members on your side too?