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Subjects
- Air pilots--United States.1
- Aircraft industry--United States.1
- Flight training.1
- Gifts.1
- Historians--United States--Correspondence.1
- History Societies, etc.1
- Learned institutions and societies--Massachusetts.1
- Philanthropists--Charitable contributions.1
- Prohibition--United States.1
- Railroad travel--United States.1
- World War, 1914-1918--Aerial operations, American.1