Book: Wheatcroft, David. 2005 The Authentic Eye: Revisiting Folk Art Masterworks.
• For two more pages from this book, see nos. 63 and 64.Thesis: Ames, Alexander Lawrence. 2014 Heavenly Handwriting, Teutonic Type: Faith & Script in German Pennsylvania, ca. 1683-1855. M.A. University of Delaware Winterthur Program in American Material Culture