Correspondence, business records, and Idaho Militia records. Including Civil War letters by and to Shearer while in a Union prisoner of war camp at Fort Delaware, Maryland, reports of battles in the Nez Perce War, 1877, and the Sheepeater War, 1878-1879.

General information about Indian massacre sites; letters regarding the location and events of a massacre in Southern Idaho, and a short history of the Birch Creek Massacre by Alex Cruikshank.

Correspondence, offical reports and special orders relating to Major Lugenbeel's military career which included service during the war with Mexico, establishment of Fort Boise, Idaho, in 1863 and duty as commandant at Fort Wayne, Indiana. Also copies of letters and reports, and newspaper clippings on Lugenbeel, collected by Norman B. Adkison.