10/26/1948
https://www.presidency.ucsb.edu...
"I should like to make your resignation effective July 1, 1945."
"Dear Frances: I accept your resignation as Secretary of Labor with great regret and with deep appreciation for all of the untiring service which you have rendered to our country."
"Dear Marvin: In view of your desire expressed to me last month to return to your place on the Court of Claims, I regretfully accept your resignation."
"With best wishes for continued success and happiness in your work, Very sincerely yours, HARRY S. TRUMAN"