Atkinson, George Francis (1854–1918) letter to Bessey, Charles Edwin (1845–1915), 23 December 1913, Box: 1, Folder: 2. William Winfield Ray collection of 20th century botanists correspondence and other materials, HIBDARC-0048. Hunt Institute for Botanical Documentation Archives. https://as.huntbot.org/repositories/2/archival_objects/3562 Accessed March 20, 2026.