These tapes cover most of his activities, including a stint while still a cadet in the Russo-Japanese War in 1904, winning the medal of St. George for getting a vital message through the lines, and later his experience in the revolution and his miraculous recovery from typhus fever in the last days of the Russian revolution in Siberia. Carl had served as a lieutenant in the U. S. Signal Corp during World War I and after the Armistice had joined an American unit to fight in the White Army with Admiral Kolchak. These tapes are in greater detail than this account and will be made part of the Explorers Club Archives. Notes From an article, written by George E. Duck, published in the Explorers Journal, Official Quarterly of the Explorers Club, Volume 60, No. 2, June 1982. The article appears to be primarily based on interviews with von Hoffman and so is not verified. References External links 1880s births 1982 deaths Military personnel from Saint Petersburg Explorers from the Russian Empire Russian military personnel of World War I People of the Russian Civil War White Russian emigrants to the United States Explorers from Saint Petersburg Recipients of the Order of St. Anna Russian military personnel of the Russo-Japanese War Baltic-German people