Author
Pennsylvania. Bureau of Topographic and Geologic Survey
199
Lytle, William S.
65
Fettke, Charles R. (Charles Reinhard), 1888-1959
38
Harper, John A.
26
Heyman, Louis
21
Sisler, James D. (James Donaldson), 1894-
21
Ashley, Geo. H. (George Hall), 1866-1951
20
Wagner, Walter Richard, 1928-1974
17
Kelley, Dana R.
15
Cozart, Cheryl L.
14
Geological Survey (U.S.). Water Resources Division
14
Geological Survey (U.S.)
12
Stone, Ralph W. (Ralph Walter), 1876-1964
12
Ingham, A. I. (Albert Irwin), 1914-2002
11
Corbin, J. Ross
10
Willard, Bradford, 1894-1973
10
Cathcart, S. H. (Stanley Holman), 1889-
9
Colton, George Willis, 1920-
8
Ebright, John R.
8
Geological Survey (U.S.). Ground Water Branch
8
Miller, Benjamin L. (Benjamin LeRoy), 1874-1944
8
Shaffner, Marchant N. (Marchant Nissley), 1897-
8
Johnson, M. E.
7
Lapham, Davis M.
7
McGlade, William G.
7
Buckwalter, Tracy V. (Tracy Vere), 1918-
6
Dickey, Parke Atherton, 1909-
6
Hoskins, Donald M.
6
Matteson, L. S. (Lawrence Stanley), 1912-
6
McCauley, John F.
6
Pennsylvania. Department of Internal Affairs
6
Poth, Charles W.
6
Sherrill, R. E. (Richard Ellis), 1899-1952
6
Koppe, Edwin F.
5
Piotrowski, Robert G.
5
Reese, John F.
5
Adamson, John Howard
4
Bolger, Robert C. (Robert Courtney)
4
Cate, Addison S.
4
Cathcart, Stanley Holman, 1889-1953
4
Flueckinger, Linda A. (Linda Ann), 1943-
4
Knowles, Raymond R.
4
Leggette, R. M. (Ralph Maxwell), 1899-
4
Newport, Thomas Gwyn, 1922-
4
Oliver, William Albert, 1926-2005
4
Seifert, Wilbur H.
4
Stephenson, Robert C. (Robert Charles), 1916-
4
Van Tuyl, Donald W. (Donald Wells), 1917-1986
4
Bennett, Gordon D.
3
Cathcart, Stanley Holman, 1889-
3
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