May 13, 1958 Colonel Hal Hardenbergh U. S. Army War College Carlisle Barracks, Pa. Dear Colonel Hardenberght Thanks for your letter of May 9 and the enclosed material. I am enclosing a revised and completed summary of my biographical data. Kindest personal good wishes. Yours truly, Ludwig von Mises 777 West End Avenue New York 25, N. Y. LM/ms Enc.