|Author||Gass, Patrick, 1771-1870|
|Publisher||Dayton, Ellis, Claflin, & Co.|
Image from Patrick Coad Family Papers. These materials are owned by the American Catholic Historical Society and maintained at the Philadelphia Archdiocesan Historical Research Center, 100 E. Wynnewood Rd. Wynnewood, PA 19096. For more information please see: http://www.pahrc.net. Graphics from Lewis and Clark's journey to the Rocky Mountains in the years 1804,-5,-6 as related by Patrick Gass, one of the officers in the expedition.