Letter from W. St. M. Barnes to Frederick Burbidge, November 01, 1900, and invoice for services and expenses of the Thiel Operative for September, 1900, submitted to B. H. & S. M. & C. Co. October 1, 1900, a361ce20f3e0b863ed1116195932e85bd. University of Idaho Library, Special Collections and Archives. https://uidaho.libraryhost.com/repositories/2/digital_objects/2093 Accessed March 15, 2025.