Ruger, A. "Bird's eye view of Great Falls, Strafford Co., New Hampshire & Berwick, York Co., Maine, 1877." Map. Madison, Wis: J. J. Stoner, 1877. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:x633fc17r (accessed April 19, 2024).