Question: The Clark Memorandum was written by the undersecretary of which man, who was the 30th President of the United States?
Sentence (from "Clark Memorandum"): The Clark Memorandum on the Monroe Doctrine or Clark Memorandum, written on December 17, 1928 by Calvin Coolidge's undersecretary of state J. Reuben Clark, concerned the United States' use of military force to intervene in Latin American nations.
Relevant evidence: Yes