I am not related.I pick postings at random and answer them.
Is this the family you are looking for in the 1900 census?
In the 1900 United States Federal Census, I found:
Name Parent or spouse names Home in 1900 (City,County,State) Birth Year BirthPlace Race Relation
Donnie Gavin Maria Poygan, Winnebago, Wisconsin abt 1823IrelandWhite Head(5/1823, 77, Married 32 years, Immigrated in 1848, 52 years in U.S.) Maria Gavin Donnie Poygan, Winnebago, Wisconsin abt 1848IrelandWhite Wife(6/1849, 52, Married 32 years, 7 children/5 alive, Immigrated in 1868, 32 years in U.S.) Michael A Gavin Donnie, Maria Poygan, Winnebago, Wisconsin abt 1898WisconsinWhite Son(9/1877) (Actual census shows 22 years old) Jennie T Gavin Donnie, Maria Poygan, Winnebago, Wisconsin abt 1882WisconsinWhite Daughter (4/1882)
Household Members: Name Age Donnie Gavin 77 Maria Gavin 52 Michael A Gavin 2 Jennie T Gavin 18