Acknowledgment and thanks by President Harding to the King of Spain for the protection of American interests in enemy countries
 The Secretary of State to the Ambassador in Spain ( Willard )
Washington , May 28, 1920 .
 The Secretary of State to the Ambassador in Spain ( Woods )
Washington , January 21, 1922 .
 The Spanish Ambassador ( Riaño ) to the Secretary of State
Washington , June 15, 1922 .