Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # United States. Army. Maine Infantry Regiment, 27th (1862-1863) 3 United States. Army. Maine Infantry Regiment, 29th (1863-1866) 1 United States. Army. Manhattan Engineer District -- SEE: United States. Army. Corps of Engineers. Manhattan District 2 United States. Army. Manhattan Project -- SEE: Manhattan Project (U.S.) 24 United States. Army. Maryland Infantry Regiment, 5th (1861-1865) 1 United States. Army. Maryland. Potomac Home Brigade 1 United States. Army. Maryland. Potomac Home Brigade. Cavalry Battalion (1861-1864) 1 SEE ALSO later heading: United States. Army. Maryland. Potomac Home Brigade. Cavalry Regiment, 1st (1864-1865) 2 United States. Army. Maryland. Potomac Home Brigade. Cavalry Regiment, 1st (1864-1865) 2 SEE ALSO earlier heading: United States. Army. Maryland. Potomac Home Brigade. Cavalry Battalion (1861-1864) 1 United States. Army. Massachusetts Cavalry Regiment, 1st (1861-1865) 1 United States. Army. Massachusetts Cavalry Regiment, 3rd (1863-1865) 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >