Hi,
Your grandfather was a brother of my great-great grandfather, Peder Quaal. Your grandparents lived for a while in Forbes, MN, and then immigrated to Rose Valley. I met some of your relatives a few years ago at a family reunion near the original Quaal homestead in Lac Qui Parle Co, MN, and my parents, uncle, and aunt came to Rose Valley a couple of years ago for your family's reunion. Please contact me via regular email and I will be glad to share info.
Chris