September 28, 1930
[Released September 28, 1930. Dated September 26, 1930]
ON THIS anniversary I offer my most cordial congratulations and those of the American Government and people.
HERBERT HOOVER
[ His Majesty Christian X, King of Denmark, Copenhagen ]
Herbert Hoover, Message to King Christian X of Denmark Offering Birthday Greetings. Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/211808