"A Philadelphia ‘Pharmaceutist’ In The Old West - William Barker Chapman," by Glenn Sonnedecker. Reprint., undated

"A Philadelphia ‘Pharmaceutist’ In The Old West - William Barker Chapman," by Glenn Sonnedecker. Reprint., undated, Box: 43, Folder: 1. Roy Bird Cook (1886-1961), Collector, Papers, A&M 1561. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/53687 Accessed December 19, 2024.