John (Jack) Kridler Grafius was seriously injured on February 23, 1931, when the "Fire Apparatus Upset at Front & Union Streets" (Wilmington). He succumb to his injuries on 1 March 1931, when "The fire truck made a sharp left turn, throwing off some firemen and killing Jackie Grafius." John (Jack) Grafius' name has been placed on the DVFA Firemen's Memorial located in Dover, Delaware. "The Monument is a recognition of the Firefighters of the State of Delaware who have lost their lives in the line of duty."