1900 census of Ray Co., Missouri, Knoxville precinct, enumerated 18 June, lists on p. 7A as household #127/129:
Feil, John, 64, b. June 1835, Germany Germany Germany, farmer; Catherine, wife, 57, b. Oct 1842, Germany Germany Germany; Riddle, Ludelia F., boarder, 26, b. Nov 1873, Missouri Ky Ky, single, housekeeper. (Plus two farmhands Lucian G. Stewart and John F. Heath.)