Appendix: List of Prominent Correspondents in the General Correspondence Series
- Barbour, Mary S.
- Bemis, Samuel Flag
- Bell, Whitfield J.
- Bellot, H. Hale
- Berrien, William
- Bingham, Millicent
- Boussemart, Annette
- Boyd, Julian P.
- Brigham, Clarence S.
- Buck, Solon J.
- Burkhardt, Frederick
- Butterfield, Lyman H.
- Cappon, Lester J.
- Carmichael, Leonard
- Churchill, John D.
- Clapp, Verner
- Curti, Merle
- Dilliard, Irving
- Doysie, Abel (and family)
- Eisenhower, Milton
- Evans, Luther H.
- Flanders, Helen H and Ralph E.
- Ford, Guy Stanton
- Frankfurter, Felix
- Graves, Mortimer
- Grover, Wayne
- Hamer, Philip
- Heindel, Richard H.
- Holland, Kenneth
- Holmes, Oliver Wendell
- Huntington, W. Chapin
- Hyde, James Hazen
- Jameson, J. Franklin
- Keeney, Barnaby C.
- Kidder, Alfred V.
- Kirkconnell, Watson
- Koht, Halvdan
- Lee, Ronald F.
- Lheritier, Michel and Andree
- Lingelbach, William E.
- McKay, Donald
- Margry, Gertrude
- Marshall, John
- Mearns, David C.
- Moe, Henry Allen
- Mumford, L. Quincy
- O’Brien, John Lord
- O’Brien, Robert Lincoln
- Odeguard, Charles E.
- Parker, David W.
- Perkins, Fred B.
- Pirenne, H.
- Posner, Ernst
- Putnam, Herbert
- Quynn, William and Dorothy
- Robinson, Fred N.
- Schafer, Boyd C.
- Schilpp, Paul A.
- Schlesinger, Arthur M.
- Shipton, Clifford K.
- Simon, Lewis A.
- Skard, Sigmund
- Snell, Edwin
- Starr, Harris E.
- Stevens, David H.
- Takagi, Yasaka
- Tate, Vernon D.
- Thomson, Charles A.
- Trever, Karl L.
- Van Kalken, Frans
- Vignaud, Henry
- Vitoux, H.
- Vitoux, Pierre
- Ware, Edith E.
- Wells, William S.
- Webster, Charles K.
- Westergaard, Waldemar
- Whitaker, Arthur P.
- Whitehill, Walter Muir
- Zdanowicz, Casimir