Looking for Poitras from Prince albert/Saskatoon area

Hi I am doing a family tree for my son and trying to find poitras. My moms maiden name is poitras her name is Sherry and her dads name is Henry. She thinks here grampa's name is John and he moved to vancouver with his wife. Her dad has all sisters named Sylvia, Gene, Mary and Ilene. John his dadmight have had a brother named Gus and a sister Theasea possiby??? She's not sure. If you have any information on anyone please send me a message really would like to find out our backround. My mom was born in Prince Albert, then moved right after to saskatoon.