Author
Beyer, George R.
2
DeLorme Mapping Company
2
Miller, Arthur P., Jr
2
Miller, Marjorie L. 1929-
2
North Pennsylvania Railroad Company
2
Pennsylvania Historical and Museum Commission
2
Smith, Helene
2
Swetnam, George
2
Thwaites, Tom
2
Adams, Dale
1
American Taxicab Company (Philadelphia, Pa.)
1
American Youth Hostels, inc. Pittsburgh Council
1
Armstrong, A. Joseph
1
Automobile Club of Philadelphia
1
Barber, David G.
1
Blackaby, Anita D.
1
Blockson, Charles L.
1
Bolles, William H.
1
Bonta, Marcia, 1940-
1
Bretschneider, Curt
1
Bryson, Lew
1
Burgwyn, Diana
1
Butko, Brian
1
Butko, Brian A.
1
Carey, Richard, 1944-
1
Council of American Revolutionary Sites
1
Feltman, Linda C.
1
Futrell, Jim
1
Geyer, Alan R.
1
Ham, Clifford C. 1924-
1
Hoffman, Carolyn
1
Huntington, Tom
1
Irwin, Jerry
1
Letcher, Gary, 1952-
1
Lewis, Paul M.
1
McCormick, M. Diane,
1
McKee, Linda Jones
1
Moore, Sally, 1936-
1
Muncy, Bruce W.
1
National Canal Museum (Easton, Pa.)
1
Ostrander, Stephen
1
Patrick, Kevin Joseph
1
Penn Bureau of Topographic and Geologic Survey
1
Penn Dept. of Highways
1
Pennsylvania State Publicity Commission
1
Pennsylvania. State Publicity Commission
1
Perloff, Susan
1
Pitzer, Sara
1
Powers, Peter
1
Roberts, Cynthia, 1953-
1
more ...