1. Map and directory of Camp Patterson Park [Baltimore, Maryland] One Hundred and Tenth Regiment of New York Volunteers. Col. D.C. Littlejohn, commanding Maps University Of Minnesota Public content 1862. Butler, J. B. (Surveyor). Detailed map indicating position of tents, principal buildings, wagon roads, and "earthwork intrenchments of the War of 1812."; Tents are keyed by ... F. Bourquin & Co. (Philadelphia).