Political and economic relations of the United States and Mexico 1
1. For previous documentation, see the compilation on discussions concerning United States participation in development of Mexico’s oil resources in Foreign Relations, 1948, vol. ix, pp. 603 ff.
 Memorandum by the Assistant Secretary of State for Economic Affairs ( Thorp ) to the Under Secretary of State ( Webb )
812.51/7–1949: Circular telegram
 Memorandum by the Assistant Secretaries of State for Economic Affairs (Thorp) and American Republic Affairs ( Miller ) to the Secretary of State
 Memorandum by the Assistant Secretaries of State for Economic Affairs (Thorp) and Inter-American Affairs ( Miller ) to the Secretary of State
 The Ambassador in Mexico ( Thurston ) to the Director of the Office of Middle American Affairs ( Reveley )