He is married to Anna Pahlow.
They got married at Wisconsin.Source 6
Child(ren):
Standing on right
Name: Ernest W Kempf Home in 1900: Omro, Winnebago, Wisconsin Age: 17 Birth Date: Oct 1882 Birthplace: Wisconsin Race: White Gender: Male Relationship to Head of House: Son Father`s Name: William Father`s Birthplace: Germany Mother`s Name: Minnie Mother`s Birthplace: Germany Marital Status: Single