Contains the following types of materials: speech; correspondence. Contains information pertaining to the following wars and time periods: Civil War -- Eastern Theater; Indian Wars, 1865-1891; 1865-1897. Contains information pertaining to the following military units and organizations: 55th and 38th New York Infantry Regiments; 3rd Brigade,1st Division, III Corps; defenses of New York City, Department of the East, 1st Brigade, 3rd Division, II Corps; 31st and 13th United States Infantry Regiments. General description of the collection: The P. Regis Detrobriand papers include General officer's papers: 2 speeches by Major General Charles G. Stevenson to Lafayette Camp 140, Sons of the Union Veterans of New York [1960] -- discusses 55th New York Regiment in Peninsula Campaign [1862] under command of General Detrobriand. Limited discussion of post Civil War military career.