List of Principal Persons
- Ali Gholi Khan, Ansari, Persian Minister of Foreign Affairs
- Ali-Kuli Khan, Mirza, Persian Counselor of Legation at Washington; Chargé d’Affaires ad interim
- Auchincloss, Gordon, Assistant to the Counselor for the Department of State and aide to Colonel House
- Baker, Newton D., Secretary of War
- Baker, Ray Stannard, Director of the Press Bureau of the Commission to Negotiate Peace
- Bakhmeteff, Boris A., Russian Ambassador at Washington
- Balfour, Arthur James, British Secretary of State for Foreign Affairs; plenipotentiary at the Paris Peace Conference
- Barclay, Colville A. de R., Counselor of the British Embassy at Washington; Chargé d’Affaires ad interim
- Baruch, Bernard M., Chairman of the War Industries Board; economic adviser to the Commission to Negotiate Peace
- Beer, G. L., specialist on Africa, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Beneš, Eduard, Czechoslovak Minister of Foreign Affairs; plenipotentiary at the Paris Peace Conference
- Benson, Admiral William S., Chief of Operations, United States Navy; technical adviser to the Commission to Negotiate Peace
- Bissolati, Leonida, Italian Minister of War Relief
- Bliss, Robert Woods, Counselor of the Embassy in France; Chargé d’Affaires in the Netherlands, September 21 to November 22, 1918; Chargé d’Affaires in France from December 23,1918
- Bliss, General Tasker H., United States Military Representative on the Supreme War Council; plenipotentiary at the Paris Peace Conference
- Bowman, Isaiah, Chief Territorial Specialist and Executive Officer, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Bratiano, J. J. C, Roumanian President of the Council and Minister of Foreign Affairs
- Brockdorff-Rantzau, Count von, German Secretary of State for Foreign Affairs from December 20, 1918
- Brun, Constantin, Danish Minister at Washington
- Bullard, Admiral William H. G., Commander of United States Naval Forces in the Eastern Mediterranean; representative on the Inter-Allied Naval Commission of Inquiry into Adriatic Affairs
- Bullitt, William C., Division of Western European Affairs, Department of State; attached to the Commission to Negotiate Peace
- Bundy, Richard C., Second Secretary of Legation in Liberia; Chargé d’Affaires
- Caffery, Jefferson, Secretary of Embassy in France
- Caldwell, John L., Minister to Persia
- Chotch, Dr. P., Montenegrin Acting Minister of Foreign Affairs
- Churchill, General Marlborough, Director of Military Intelligence; general military liaison and coordinating officer, Commission to Negotiate Peace
- Clemenceau, Georges E. B., French President of the Council and Minister of War; plenipotentiary at the Paris Peace Conference and president of the Conference
- Clémentel, Etienne, French Minister of Commerce, Industry, and Posts and Telegraphs; member of the Allied Maritime Transport Council; French representative on the Inter-Allied Relief Commission
- Cobb, Frank I., editor of the New York World, special representative of the Department of State in Europe
- Coolidge, Professor Archibald Cary, Director of the Special Commission of Study in Austria, Commission to Negotiate Peace
- Cosio, Pedro, Uruguayan Minister at Washington
- Cravath, Paul D., Advisory Counsel of the Mission to the Inter-Allied Council on War Purchases and Finance
- Creel, George, Chairman of the Committee on Public Information
- Crespi, Silvio, Italian Minister of Provisions
- Crosby, Oscar T., Assistant Secretary of the Treasury; President of the Inter-Allied Council on War Purchases and Finance
- Da Gama, Domicio, Brazilian Minister for Foreign Affairs
- Davis, John W., Solicitor General; appointed Ambassador to Great Britain, November 21, 1918
- Davis, Norman H., Treasury representative at London and Paris; financial adviser to the Commission to Negotiate Peace
- Day, Clive, specialist on the Balkans, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- De Cartier de Marchienne, E., Belgian Minister at Washington
- De Chambrun, Charles, French Counselor of Embassy at Washington and Chargé d’Affaires, December 1918 to June 1919
- De Ipanema Moreira, Alberto, Brazilian Counselor of Embassy at Washington, Chargé d’Affaires ad interim
- Derby, Earl of (Edward George V. Stanley), British Ambassador at Paris
- Di Valentino, Baron Pietro Arone, Italian Secretary of Embassy at Washington; Chargé d’Affaires ad interim
- Dixon, Dr. R. B., specialist on Inner Asia, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Dmowski, Roman, President of the Polish National Committee
- Dodge, H. Percival, Special Agent to Serbia (at Corfu) of the Department of State; Chargé d’Affaires in Serbia
- Dresel, Ellis Loring, Director of the Special Commission of Study in Germany, Commission to Negotiate Peace
- Droppers, Garrett, Minister to Greece
- Dulles, Allen W., Second Secretary of Legation in Switzerland; attached to Commission to Negotiate Peace
- Dulles, John Foster, Counsel to the Commission to Negotiate Peace
- Ebert, Friedrich, Chancellor of the German Provisional Government from November 9, 1918
- Eisner, Kurt, Bavarian Socialist leader; Premier and Minister of Foreign Affairs of the Bavarian Republic from November 9, 1918
- Ekengren, W. A. F., Swedish Minister at Washington
- Erzberger, Matthias, German Secretary of State without portfolio; President of the German Armistice Commission
- Foch, Ferdinand, Marshal of France and Generalissimo of the Allied forces
- Franchet d’espérey, General A. L., Commander in Chief of the Allied Armies in the East
- Garrett, John W., Minister to the Netherlands; accredited also to Luxemburg
- Gary, Hampson, Diplomatic Agent and Consul General at Cairo
- Gay, Edwin F., representative of the Shipping Board on the War Trade Board
- Gibson, Hugh S., Secretary of Embassy in France; assigned to assist Chairman of Inter-Allied Food Council, Herbert Hoover; member of Inter-Allied Mission to countries of former Austro-Hungarian Empire
- Glass, Carter, Secretary of the Treasury from December 16, 1918
- Gompers, Samuel, President of the American Federation of Labor
- Grant-Smith, Ulysses, Counselor of Legation in Denmark; Chargé d’Affaires
- Grew, Joseph C., Secretary General of the Commission to Negotiate Peace
- Gvosdenovitch, General Antoine, Montenegrin Minister at Washington
- Hack, Louis, Commissioner at Constantinople
- Harrison, Leland, Diplomatic Secretary of the Commission to Negotiate Peace
- Harts, General William W., Commander of American forces in the District of Paris; military aide to President Wilson while in Europe, December 1918–June 1919
- Haskins, Dr. C. H., specialist on Western Europe, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Hoover, Herbert C., United States Food Administrator; Chairman of the American Relief Administration; Chairman of the Inter-Allied Food Council
- Hornbeck, Stanley K., specialist on the Far East and Pacific, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Horton, George, Consul General at Saloniki
- House, Colonel Edward M., the special representative of the United States in Europe from October 16, 1918; American plenipotentiary at the Paris Peace Conference
- Howard, Daniel, President of the Republic of Liberia
- Hurley, Edward N., Chairman of the United States Shipping Board; President of the United States Shipping Board Emergency Fleet Corporation
- Hymans, Paul, Belgian Minister of Foreign Affairs
- Jay, Peter Augustus, Counselor of Embassy in Italy
- Jefferson, Mark, specialist on Geography and Cartography, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Jeffery, Robert E., Minister to Uruguay
- Jusserand, Jules J., French Ambassador at Washington
- Karnebeek, Dr. H. A. van, Netherlands Minister for Foreign Affairs.
- Kernan, Major General Francis J., technical military adviser to the Commission to Negotiate Peace
- Keynes, John Maynard, attached to the British Treasury, 1915–1919; official Treasury representative at the Paris Peace Conference
- Klutchnikoff, Yuri Veniaminovich, Acting Foreign Minister of the Kolchak government at Omsk
- Lahovary, N. H., Roumanian Secretary of Legation at Washington and Chargé d’Affaires ad interim
- Lansing, Robert, Secretary of State; plenipotentiary at the Paris Peace Conference
- Laughlin, Irwin B., Counselor of Embassy in Great Britain; Chargé d’Affaires, October 3 to December 17, 1918
- Law, Andrew Bonar, British Chancellor of the Exchequer, December 1916 to January 1919
- Leffingwell, Russell C., Assistant Secretary of the Treasury
- Lippmann, Walter, Secretary of the American Commission of Inquiry for the Peace Conference; attached to the Commission to Negotiate Peace
- Lloyd George, David, British Prime Minister and First Lord of the Treasury; plenipotentiary at the Paris Peace Conference
- Logan, T. F., United States special shipping commissioner at Paris
- Long, Breckinridge, Third Assistant Secretary of State
- Lord, Dr. R. H., specialist on Russia and Poland, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Lunt, Dr. W. E., specialist on Italy, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- McAdoo, William Gibbs, Secretary of the Treasury to December 16, 1918
- McCormick, Vance C., Chairman of the War Trade Board
- McFadden, George, War Trade Board representative at Paris
- McKinstry, General C. H., head of the War Damages Board
- McMillin, Benton, Minister to Peru
- Macchi di Cellere, Count Vincenzo, Italian Ambassador at Washington
- Mezes, Dr. S. E., Director of the Division of Territorial Economic and Political Intelligence, Commission to Negotiate Peace
- Miller, David Hunter, technical adviser on international law to the Commission to Negotiate Peace
- Miniscalchi-Erizzo, Count Bonifacio, Italian Counselor of Embassy at Washington; Chargé d’Affaires ad interim
- Morgan, Edwin V., Ambassador to Brazil
- Morris, Ira Nelson, Minister to Sweden
- Morris, Roland S., Ambassador to Japan
- Morrow, Dwight W., adviser to the Allied Maritime Transport Council
- Murphy, Dominic I., Consul General at Sofia
- Nicholas I, King of Montenegro, December 19, 1900–November 26, 1918
- Orlando, Vittorio E., President of the Italian Council of Ministers; plenipotentiary at the Paris Peace Conference
- Osborne, Lithgow, Second Secretary of Legation in Denmark; Chargé d’Affaires ad interim
- Paderewski, Ignace Jan, Prime Minister and Secretary for Foreign Affairs of the Provisional Polish Government
- Page, Thomas Nelson, Ambassador to Italy
- Pashitch, Nikola P., Serbian President of the Council and Minister of Foreign Affairs
- Patchin, Philip H., Executive Secretary of the Commission to Negotiate Peace
- Pershing, General John J., Commander in Chief of the American Expeditionary Forces in Europe
- Phillips, William, Assistant Secretary of State
- Pichon, Stephen, French Minister of Foreign Affairs; plenipotentiary at the Paris Peace Conference
- Pilsudski, Joseph, Chief of the Polish State
- Poincaré, Raymond, President of the Republic of France
- Polk, Frank Lyon, Counselor for the Department of State
- Poole, Dewitt C., Chargé d’Affaires in Russia (Archangel)
- Popovitch, Eugene, Montenegrin Minister of Foreign Affairs
- Price, William J., Minister to Panama
- Rathbone, Arthur, Assistant Secretary of the Treasury
- Reading, Earl of (Rufus Daniel Isaacs), British High Commissioner and Ambassador on Special Mission at Washington; British representative on the Inter-Allied Relief Commission
- Reinsch, Paul S., Minister to China
- Rickard, Edgar, Acting United States Food Administrator from November 1918
- Roussos, Georges, Greek Minister at Washington
- Rublee, George, United States Shipping Board representative at London; member of the Allied Maritime Transport Council
- Scavenius, Erik, Danish Minister for Foreign Affairs
- Scheidemann, Philipp, German Minister of Finance from November 9, 1918
- Schmedeman, Albert G., Minister to Norway
- Scott, James Brown, technical adviser on international law to the Commission to Negotiate Peace
- Seymour, Dr. Charles, specialist on Austria-Hungary, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Sharp, William G., Ambassador to France
- Sheldon, L. P., War Trade Board and Food Administration representative at London
- Shotwell, J. T., Chief of the History Division and Librarian, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Simitch, Y., Serbian Secretary of Legation at Washington
- Skinner, Robert P., Consul General at London
- Solf, Wilhelm, German Secretary of State for Foreign Affairs, October 3, 1918–December 17, 1918
- Sonnino, Baron Sidney, Italian Minister of Foreign Affairs; plenipotentiary at the Paris Peace Conference
- Stevens, Raymond B., Vice Chairman of the Shipping Board; member of the Allied Maritime Transport Council
- Stewart, W. A. W., War Trade Board representative at Rome
- Stovall, Pleasant A., Minister to Switzerland
- Sulzer, Hans, Swiss Minister at Washington
- Summers, Leland L., Chairman of the United States War Industries Board Mission in Europe; member of the Inter-Allied Munitions Council
- Tardieu, André P. G. A., French High Commissioner to the United States; plenipotentiary at the Paris Peace Conference
- Taylor, Alonzo E., representative of the Secretary of Agriculture on the War Trade Board
- Theodoroff, T., Bulgarian President of the Council and Minister for Foreign Affairs
- Tudela, Dr. Don Francisco, Peruvian Minister at Washington
- Uchida, Viscount, Yasuya, Japanese Minister of Foreign Affairs
- Venizelos, Eleutherios K., Greek Premier and Minister of War
- Victor Emanuel III, King of Italy
- Vopicka, Charles J., Minister to Roumania
- Wemyss, Admiral Sir Rosslyn, British First Sea Lord and Chief of the Naval Staff
- Westermann, Dr. W. L., specialist on Western Asia, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- White, Beaver, representative of the Food Administrator on the War Trade Board
- White, Francis, Second Secretary of Legation in Switzerland
- White, Henry, American plenipotentiary at the Paris Peace Conference
- White, John Campbell, Chargé d’Affaires in Siam
- Whitehouse, Sheldon, Counselor of Legation in Sweden
- Whitlock, Brand, Minister to Belgium
- Williams, Edward T., specialist on the Far East and Pacific, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace
- Wilson, Charles Stetson, Chargé d’Affaires in Bulgaria
- Wilson, Hugh R., Secretary of Legation in Switzerland; Chargé d’Affaires ad interim
- Wilson, Woodrow, President of the United States; plenipotentiary at the Paris Peace Conference
- Wiseman, Sir William, Chief of the British intelligence service in Washington; liaison officer between Colonel House and the British during the World War; chief adviser on American affairs to British Delegation, Paris Peace Conference
- Woolley, Clarence M., representative of the Shipping Board on the War Trade Board
- Woolsey, Lester H., Solicitor for the Department of State
- Young, Dr. Allyn A., specialist on Economics and Statistics, Division of Territorial, Economic and Political Intelligence, Commission to Negotiate Peace