Boston and Baltimore Tunnels, (letters-Boston Tunnel, maps, Old Union Tunnel, Baltimore)
name: label: Collection Creator
content: Hutton, William R., 1826-1901
setName: label: See more items in
content: William R. Hutton Papers
label: See more items in
content: William R. Hutton Papers / Series 8: Professional Projects / 8.5: Other Projects
unitdate: label: Date
content: 1876-1900
container: label: Container
content: Box 28, Folder 28
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials