The Story of Lithography / by Lewis Cass Gandy. The discovery”. Supplement to the Lithographers’ Journal. Feb. 1940. V. xxiv, no. 11, Box: 3. Arthur Ormsbee and the graphic and printing industry in Grand Rapids collection, Collection 296. Grand Rapids History Center. https://archive.grpl.org/repositories/4/archival_objects/32202 Accessed November 15, 2024.