WILLIAM S. SIMS (1858-1936) was a highly influential leader of the US military in the first half of the twentieth century. Thanks to his knowledge of naval warfare he was made commander of all US naval forces in Europe during World War I. Subsequently, he served twice as president of the Naval War College. BURTON J. HENDRICK (1870-1949) was a respected American author and historian, who won several Pulitzer Prizes (for biography in 1923 for The Life and Letters of Walter H. Page and in 1929 for The Training of an American, and for history in 1921 for The Victory at Sea). Hendrick wrote many other books including Bulwark of the Republic and Lincoln's War Cabinet.