Book: Ames, Alexander Lawrence. 2020 The Word in the Wilderness: Popular Piety and the Manuscript Arts in Early Pennsylvania.
• Published: p. 75, fig.18Book: Hershey, Mary Jane Lederach. 2003 This Teaching I Present: Fraktur from the Skippack and Salford Mennonite Meetinghouse Schools, 1747-1836.
• Published as Plate 89, p. 132. For another example attributed to Hummel, see p. 133.Book: Hutchins, Catherine E., et al. 1983 Arts of the Pennsylvania Germans.
• Published as fig. 247, pp. 254-55.Book: Earnest, Russell D. & Earnest, Corinne P. 1997 Papers for Birth Dayes: Guide to the Fraktur Artists and Scriveners. 2 vols. 909.
• See p. 420 for more info. on this artist. No examples of his work listed.Article: Mass, Jennifer, et al. 09//2005 Materials of the Pennsylvania German Fraktur Artist. Antiques. 168 (3): 128-135.
• Published as pl. VI, on p. 131.