sentences:  The Clark Memorandum, written on December 17, 1928 by Calvin Coolidge's undersecretary of state J. Reuben Clark, concerned U.S. use of military force to intervene in Latin American nations.This memorandum was officially released in 1930 by the Herbert Hoover administration.The Clark memorandum rejected the view that the Roosevelt Corollary was based on the Monroe Doctrine.