Scope and Contents The Henry Bostock letters consist mostly of correspondence from him to his mother in Michigan. The letters contain descriptions about camp life and conditions, pay, items he wished his mother would send, his regiment movements, as well as descriptions of commanders. The majority of the letters date from 1862. Also included is a letter to his brother William, a letter from George Blashfield to Captain Cogswell about the circumstances of Henry's death, a letter from Captain Cogswell to Henry's...