Messages from the governors of Maryland and Pennsylvania, transmitting the reports of the joint commissioners, and of Lieut. Col. Graham, U.S. topographical engineers, in relation to the intersection of the boundary lines of the states of Maryland, Pennsylvania and Delaware, being a portion of Mason and Dixon's line
Commission on Boundary Lines between Delaware, Maryland, and Pennsylvania (1850); Maryland. Governor (1848-1851 : Thomas); Pennsylvania. Governor (1848-1852 : Johnston); Graham, J. D. (James Duncan), 1799-1865