SHH IX:31
'Map of the United States and Texas - Boundary Line and Adjacent Territory Determined and Surveyed in 1857, 8, 9, 1860.' Clark, J.H., U.S. Commissioner, Department of the Interior
SHH IX:11
'Map of Texas and the Countries Adjacent.' 1844. U.S. War Department. W.H. Emory. (2 copies).(1 copy encapsulated, copies are different sizes)
