Wirth left his legacy in Minneapolis and via his three children:  Conrad L. Wirth became director of the National Park Service; Walter L. Wirth was superintendent of parks in New Haven, Connecticut, and superintendent of the Salem, Oregon, Regional Parks System.
Wirth left a lasting mark on both Minneapolis and his family. His son, Conrad L. Wirth, took over as director of the National Park Service; Walter L. Wirth managed parks in New Haven, Connecticut, and later oversaw the Salem, Oregon, Regional Parks System.