01/30/1938
https://www.presidency.ucsb.edu...
"No interference with elections.—No person in the executive civil service shall use his official authority or influence for the purpose of interfering with an election or affecting the results thereof."
"I hereby prescribe the following additional regulations governing the exportation of the articles and materials named in my proclamation of March 4, 1941."
"The articles and materials named in the said proclamation shall be construed to include the following:"
"Executive Order No. 8640 is hereby amended to include within its provisions the articles and materials named in my proclamation of March 4, 1941."