Statistics of bridges over Concord River : Between Heard's Bridge and Billerica Dam : obtained June 22d, 23d, & 24th 1859 ... : typed transcription, 1991.
Related Entities
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Thoreau, Henry David, 1817-1862
http://n2t.net/ark:/99166/w6165668 (person)
Henry David Thoreau (b. July 12, 1817, Concord, Massachusetts-d. May 6, 1862, Concord, Massachusetts), American author, lecturer, naturalist, student of Native American artifacts and life, transcendentalist, land surveyor, and life-long resident of Concord, Massachusetts. He was an active opponent of slavery and a social critic. He graduated from Harvard College in 1837....
Elsman, Kyle S.
http://n2t.net/ark:/99166/w6xd20c1 (person)
