|Advanced Landing Ground
|The Army Air Corps became the Army Air Force in 19__, and the Army Air Force became its own branch of service (the Air Force) in 19__. Although technically incorrect, the term "Air Corps" is sometimes used for the entire period before Air Force became its own branch of service.
|Army Air Force
|Died non-battle - Persons who died of sickness, homicide, suicide or acidents outside of combat areas (including training and maneuver deaths)
|Died of Injuries - Persons who suffered fatal battle injuries as opposed to wounds, in combat or combat areas, and died in a line-of-duty status.
|Died of Wounds - Persons wounded and died later.
|Distinguished Unit Citation; this award was renamed the Presidential Unit Citation in 19??
|European Theater of Operations
|Flieger Abwehr Kanone; German anti-aircraft cannon
|Finding of Death - Missing persons who were determined to be dead pursuant to Public Law 490.
|Killed in action--killed during combat operations. It is not necessary to be killed in contested airspace; ground personnel killed tending to aircraft departing returning from combat are considered killed in action. Prisoners of war who die are generally considered to be Killed in Action, whether by air bombardment of his prison camp or shot during an escape attempt.
|Missing in action
|Combat action by a group of aircraft; the group is generally not credited for a mission unless it enters contested airspace
|Officer in Charge
|Operational training casualty - killed in training at duty station
|Prisoner of war
|Pierced Steel Plank - steel mesh used as runway surfacing
|Aircraft were said to be "salvaged" when they were used as a source of parts.
|Bombs were said to be “salvoed” when they were dropped with safety wires intact and the detonators were not armed.
|Serial numbers take one of the following formats:
Enlisted Personnel before the advent of Selective Service
6xxxxxx - Enlisted in the Regular Army
7xxxxxx - Enlisted in the Regular Army
Enlisted personnel after the advent of Selective Service
1yxxxxxx - Enlisted in the Army of the United States
2yxxxxxx - National Guardsman called into service
3yxxxxxx - Inducted or Enlisted through Selective Service
4yxxxxxx - Inducted or Enlisted through Selective Service
The second digit ("y") indicates the Service Command of origin
"1" is the Fist Service Command (New England)
"4" is the Fourth Service Command (Southeastern U.S.).
Prefixes for other classes of personnel
A - WAC enlisted women
L - Commissioned officers of the Women's Army Corps
M - Physical therapy aides
O - Male commissioned officers
R - Hospital dietitians
T - Flight officers of the Army Air Forces
V - WAC warrant officers
W - Warrant officers
|Combat action by an aircraft; an aircraft is generally not credited for a sortie unless it enters contested airspace
|Training casualty - killed in training accident before deployment
|Wounded in action - wounded during combat operations