SHH IX:18
Walker Map of 1849: Central America including Texas, California and the Northern States of Mexico. Chapman and Hall (London). (3 copies). G3290.S7060W3.
United States; Maps; Indians of North America; Native peoples of North America; Native peoples of the Americas;
Early map of Texas, Indian Territory, Arkansas, Louisiana and Mississippi
SHH IX:27
United States Map No. 6 [The Old Southwest]. 1853. Burgess (Daniel) & Co. G3990.B83 1853a.
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