Seaman, U.S. Navy. Awarded for actions on board the USS Mount Washington at Hampton Roads, VA.
April 14, 1863
Born in Germany, Thielberg was one of four men temporarily assigned to the Washington to receive the Medal during the seige of Suffolk, VA.
Citation: Serving temporarily on board the USS Mount Washington during the Nansemond River action, 14 April 1863. After assisting in hauling up and raising the flagstaff, Thielberg volunteered to go up on the pilothouse and observe the movements of the enemy and although 3 shells struck within a few inches of his head, remained at his post until ordered to descend.