http://pec.lib.wvu.edu/record/P29621884Report on the survey of the West Virginia and Pennsylvania boundary, 1883. Monograph. Report of the Joint Commission on the Boundary Line between Pennsylvania and West Virginia / signed J.C. Gist ... [et al.]--Report of C.H. Sinclair, U.S.C. & G. Survey, Chief of party--Meridian boundary West Virginia and Pennsylvania : description of old monuments and positions of new stones, 1883 / C.H. Sinclair, C.H. Van Orden--Parallel boundary West Virginia and Pennsylvania : description of old monuments and positions of new stones, 1883 / C.H. Sinclair, C.H. Van Orden.Sinclair, Cephas Hemstone, 1847-1920.West Virginia--Boundaries--Pennsylvania.Pennsylvania--Boundaries--West Virginia.14256