SHH IX:9
Map of Texas, Compiled from Surveys on Record in the General Land Office of the Republic, to the year 1839, by Richard Hunt and Jesse F. Randel. (2 copies).
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