Knapp Family from Massachusetts Late 1700 S

My Grandmother was Cora Maud KNAPP dob 1878. Her father was Charles H KNAPP dob 1845 in New York. His father was Henry KNAPP dob 1808 or 1809 in Massachusetts. His father was Homer KNAPP born dob 1775? I don't know where Homer was born though. He may have immigrated from Germany or England,or from Canada. I don't know.
I have hit a brick wall here. This family went from Massachusetts to New York, to Geauga (Russell) Ohio to Fond Du Lac Wisconsin then to Brown Co. Minnesota. If anyone who is a part of this family, I would love to hear from you.
Sharon Turnbull