Great Grandfather David Allen Grow

David Allen Grow 1843-1935 grew up in the Northeast, lived in Iowa where his wife Sarah Elizabeth Lord is buried. He moved to Wisconsin where he died in Pardeville.
We only know of one child from their marriage, Vinnie Ream Grow. I am told there are a lot of Grows in Wisconsin. Can anyone help me locate more on Great Grandfather David Allen Grow?
Philip Gray Giles