Constance was founded in section 13 of the former Grow Township prior to 1897, and had a post office from 1897 to 1955. Constance formerly had a station along the former
Burlington Northern Railroad. Little trace of Constance itself remains, and Grow Township incorporated as the city of
Andover in 1973, but Constance Boulevard remains a main two-lane roadway in the local area. ==Notes==