Author
prev ...
King, LeRoy Albert
1
Lafourcade, Peter M.
1
Lehman, Christian
1
Lightfoot, Jesse
1
Long, Richard Stokes, 1909-
1
Marshall, R. M. 1907-
1
Martin, Steven C.
1
Mason-Dixon Line
1
Mattlin, Jay A.
1
Moore, James Clark
1
Myers, Albert Cook 1874-1960
1
Pannebecker, Henry
1
Patrick, Austin Lathrop, 1889-
1
Pennsylvania Geological Survey
1
Pennsylvania State Education Association
1
Pennsylvania Topographic and Geologic Survey,
1
Pennsylvania. Bureau of Topographic and Geologic Survey
1
Philadelphia City Planning Commission
1
Philadelphia County (Pa.)
1
Porter, Andrew 1743-1813
1
Scull, Nicholas, 1686?-1761?
1
Shaw, Charles Frederick, 1881-
1
Shober, John A.H.
1
Stevenson, George
1
Swayne, W. Marshall
1
Taylor, Jacob, d. 1746 and Isaac Taylor
1
Temple University. Institute for Survey Research
1
Tyndall, Carolyn
1
United States. Federal Civil Works Administration
1
United States. Soil Conservation Service
1
Updegraff, Harlan, 1874-1953
1
Walker, George
1
Weber, Carmen A.
1
Wood & Shardlow
1
Yamin, Rebecca, 1942-
1
Zimmerman, Mathias and Christian Lehman
1