Research materials relating to the overall history of the Oregon and California Trails. The file includes a brief history of the Oregon and California Trails; pamphlets about Chimney Rock National Historic Site, Fort Kearny, and Scotts Bluff National Monument; newspaper clippings; bibliography; Armitage's notes on the Oregon and California Trails; book and article reviews by Armitage; correspondence with Kansas State Historical Society, Oregon-California Trails Association, and Dawson County Historical Society staff; Dawson County Historical Society Newsletter Vol. 6 No. 1; and photocopies of academic publications.