Maryland Military Records
Maryland Pension Records Maryland Pension Files 1835 (hosted at USGenWeb Pension Archives )
War of 1812
Civil War Battlefield Maps
Civil War Soldiers and Sailors System (hosted at the National Park Service)
World War I
Draft Record microfilm available from the National Archives, by state
World War II
World War II Casualties – By State and County – Army, Army Air Corps, Navy, Marines, Coast Guard
Pearl Harbor Causality List – Name, Rank and location.
U. S. Military National Cemeteries – National Military Burial Sites, all wars
U.S. Military State Cemeteries – State Military Burial Sites, all wars.