1. Free Library of Philadelphia, Lewis E 79 Title: Expositio super orationem dominicam Author: Gulielmus Herlyacensis Place: Netherlands
4. Free Library of Philadelphia, Lewis E M 18:10 Title: Antiphonary Place: Netherlands Date: 1475-1499
5. Free Library of Philadelphia, Lewis E M 18:11 Title: Antiphonary Place: Netherlands Date: 1490-1510