Other
Chamber of Commerce of Greater Philadelphia
3
Elise Willing Balch Collection
2
Bell Telephone Company of Philadelphia (Pa.)
1
Delaware and Atlantic Telegraph and Telephone Company
1
Free Library of Philadelphia Office of Public Service Support
1
George de Benneville Keim Memorial Collection
1
H.M. Gousha Company,
1
Matthias, Benjamin
1
Milnor, William, 1769-1848
1
Museum Council of Philadelphia and the Delaware Valley Education Committee
1
Penjerdel (Corporation)
1
Rand McNally and Company
1
Regional Planning Federation of the Philadelphia Tri-State District Population Committee
1
School District of Philadelphia, Pa. Office of Curriculum Support
1
Thomas Balch Collection
1
United States. Bureau of the Census
1