Statistics for occurrence #1 of “Marcy” in chapter 6 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...this series, one of the farthest forts to the southwest, comes Battery Rodgers, south of Alexandria; then the entrance to Long Bridge; Forts Corcoran and Woodbury, defending the Aqueduct Bridge; Fort Marcy , the farthest north across the Potomac from Washington; Fort Sumner, the farthest north on the other side of the Potomac; Fort Stevens, farther east; Fort Totten, east of Fort Stevens; Fort Lincoln, ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Marcy 140 2 76 0 0 user votes
Randolph B. Marcy 96 0 12 0 0 user votes
R. B. Marcy 60 0 6 0 0 user votes
William L. Marcy 52 0 4 0 0 user votes
William Marcy 18 0 0 0 0 user votes
Randolph Barnes Marcy 11 0 1 0 0 user votes
Henry Orlando Marcy 10 0 2 0 0 user votes
Marvin Marcy 10 0 0 0 0 user votes
W. L. Marcy 8 0 0 0 0 user votes
Henry O. Marcy 7 0 1 0 0 user votes
Charles Marcy 6 0 0 0 0 user votes
Daniel Marcy 6 0 0 0 0 user votes
William Learned Marcy 6 0 0 0 0 user votes
William G. Marcy 4 0 2 0 0 user votes
John S. Marcy 3 0 1 0 0 user votes
B. Marcy 2 0 0 0 0 user votes
Dr. H. O. Marcy 2 0 0 0 0 user votes
George O. Marcy 2 0 2 0 0 user votes
Grosvenor Marcy 2 0 0 0 0 user votes
H. O. Marcy 2 0 0 0 0 user votes
James Marcy 2 0 0 0 0 user votes
N. P. Marcy 2 0 0 0 0 user votes
Samuel Marcy 2 0 0 0 0 user votes
Thomas G. Marcy 2 0 0 0 0 user votes
W. L. L. Marcy 2 0 0 0 0 user votes
William I. Marcy 2 0 0 0 0 user votes
Ellen Marcy 1 0 1 0 0 user votes
Ellen M. Marcy 1 0 1 0 0 user votes
H. G. Marcy 1 0 1 0 0 user votes
R. E. Marcy 1 0 1 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.