Copy negative: “Sand-bag battery, commanding the road to Harper’s [sic] Ferry, near the Relay House – built by Lieutenant W. H. M’Cartney [sic], Boston Light Artillery.” Harper’s Weekly, June 1, 1861.

Copy negative: “Sand-bag battery, commanding the road to Harper’s [sic] Ferry, near the Relay House – built by Lieutenant W. H. M’Cartney [sic], Boston Light Artillery.” Harper’s Weekly, June 1, 1861., MD5418.1, Box: 13 [5x7]. Peale/Baltimore City Life Museum glass negatives collection, PBGN. H. Furlong Baldwin Library. https://mdhistory.libraryhost.com/repositories/2/archival_objects/177943 Accessed December 22, 2024.