Career
He practiced law in New York City from 1911 to 1929, served on the Inquiry, a body of experts that collected data for the Paris Peace Conference (1917–1919), and was legal adviser to the American commission to the conference. As an officer of the United States. Department of State (1929–1944), Miller headed the United States. delegation to the 1930 Hague Conference for the codification of international law. His published works include My Diary at the Conference of Paris, with Documents (21 volume, 1924-1926) and Treaties and Other International Acts of the United States of America (8 volume, 1931–1948).