August 06, 1929
ON BEHALF of my fellow countrymen, and in my own name, I send cordial felicitations on this Independence Day anniversary.
HERBERT HOOVER
[His Excellency Hernando Siles, The President of Bolivia, La Paz]
Herbert Hoover, Message to President Hernando Siles on Bolivia's Independence Day. Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/212220