1. Free Library of Philadelphia, Lewis E 115 DS ID: DS4469 Title: Book of hours Place: Italy Date: 1400-1415
2. Free Library of Philadelphia, Widener 3 DS ID: DS6335 Title: Book of hours and John Brown Hours Place: Flanders Date: 1450-1475
3. Free Library of Philadelphia, Widener 6 DS ID: DS6338 Title: Book of hours Place: France Date: 1415-1420