Porcupine Ledger-Schoyen. ANIMALS: Elk and Skunk. Drawn in 1879 by Northern Cheyenne leader Porcipine in Dodge City Jail. Dodge City, Kansas; purchased by L.M. Wyatt from Porcupine in April 1879, Dodge City, Kansas; Bruce Ferrini, Akron, Ohio; Schoyen Collection, London and Oslo. This is one of four extant ledger notebooks made by one or more survivors of the Fort Robinson break-out while awaiting trial in Dodge City (1879). Plainsledgerart.org. ДА.