1911. 2013-03-14T18:16:03Z. 2013-03-14T18:16:03Z. Shaw, E. W. (Eugene Wesley), 1881-1935. The Survey. English. Public. Pennsylvania, Armstrong County, Butler County, Clarion County, and Venango County.
Search Results
1972. 2012-11-16T19:36:37Z. 2012-11-16T19:36:37Z. Patterson, E. D. (Elmer Davisson). U.S. Geological Survey. English. Public. Pennsylvania and Clarion County.
1905. 2013-03-14T14:03:48Z. 2021-09-27T17:33:04Z. Butts, Charles, 1863-1946. The Survey. English. Public. Pennsylvania, Armstrong County, Clarion County, États-Unis, and Pennsylvanie.