Subject
Transportation
28
World War, 1939-1945
28
History
11
Naval operations, American
5
Railroads
5
Aerial operations, American
4
Campaigns
4
Regimental histories
4
Holocaust, Jewish (1939-1945)
3
Women air pilots
3
Air pilots
2
Atrocities
2
Cargo ships
2
Deportations from France
2
Merchant marine
2
Petroleum industry and trade
2
Training-ships
2
Warships
2
Aerial operations, Soviet
1
African Americans
1
Airplanes
1
Armed Forces
1
Casualties
1
Communications, Military
1
Conscript labor
1
Design and construction
1
Dunkirk, Battle of, Dunkerque, France, 1940
1
Employees
1
Equipment and supplies
1
Ethnic relations
1
Ferrying
1
Influence
1
Jews
1
Liberty ships
1
Marine engineers
1
Merchant mariners
1
Naval convoys
1
Naval operations, British
1
Participation, Female
1
Persecutions
1
Postal service
1
Shipbuilding
1
Shipwrecks
1