Fort Preble (Me.)
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מידע על הזהות:
מקורות מידע
- NUCMC data from Maine Historical Society for Portland, Me., harbor defenses reports, 1907-1988(Fort Preble, Me.)
- Roberts, R.B. Encycl. hist. forts, c1988:p. 371 (Fort Preble; on Preble Point; 3 miles SE of Portland in the city's harbor; built 1808 by U.S. Army; garrisoned until the Civil War and continuously thereafter; military personnel temp. assigned from 1911 to 1947 when declared surplus)