Alexander Duer Irving, Jr. (1873-1941) was assigned as a junior naval aide to President Woodrow Wilson (1856-1924) on his trip to the Paris Peace Conference, primarily because of his knowledge of French. He served with the rank of lieutenant under Wilson's personal physician, Admiral Cary T. Grayson (1878-1938).

In Paris Irving was assigned to handle presidential mail and do translations. He does not appear to have been in on negotiations. He had little direct contact with Wilson and saw more of Herbert Hoover (1874-1964) while in Paris. In May 1919 Irving was asked to translate French Primer Minister George Clemenceau's (1841-1929) letter for the Decoration Day ceremonies at the American Cemetery, and to read his translation before Wilson's two-day tour of the battlefields in Belgium.

Irving was born on May 24, 1873 the son of Alexander Duer Irving, Sr. (1842-1910), and Ellen Eugenia du Pont (1842-1876), and grandson of Henry du Pont (1812-1889).