| Folder 51/74 | Padula, Ginevra. — Oct 30 1956-Nov 9 1956 | |
| Folder 51/75 | Page, Irvine H.. — Jul 30 1948-Jun 18 1973 | |
| Folder 51/76 | Palmer, Francis H.. — Nov 14 1947-Nov 22 1947 | |
| Folder 51/77 | Palmer, Martin F.. — Jun 23 1964 | |
| Folder 51/78 | Panariello, Albert M.. — Dec 4 1969 | |
| Folder 51/79 | Papez, James W.. — May 3 1945-Feb 29 1952 | |
| Folder 51/80 | Pappenheimer, John. — Dec 11 1958-Mar 27 1963 | |
| Folder 51/81 | Parin, V. V.. — Aug 21 1958-Dec 27 1963 | |
| Folder 51/82 | Park, Edwards A.. — Mar 7 1933-Nov 18 1937 | |
| Folder 51/83 | Park, Lee C.. — n.d. | |
| Folder 51/84 | Parker, Joe. — Jul 24 1961 | |
| Folder 51/85 | Parker, Joseph B. Jr.. — Feb 16 1961-Jan 25 1962 | |
| Folder 51/86 | Parker, Judie. — n.d. | |
| Folder 51/87 | Parker, Treela. — Sep 6 1972-Feb 28 1973 | |
| Folder 51/88 | Parks, W. George. — Feb 14 1961 | |
| Box 52 | Parm-Peters | |
| Folder 52/1 | Parmalee, Charles. — May 30 1962-Mar 6 1963 | |
| Folder 52/2 | Parmenter, Richard. — May 24 1939-Aug 7 1939 | |
| Folder 52/3 | Parnell, M. A.. — Jun 14 1973 | |
| Folder 52/4 | Paroissien, H. F.. — Apr 28 1950-Feb 14 1961 | |
| Folder 52/5 | Parry, W. T.. — Jul 22 1936 | |
| Folder 52/6 | Parsons, Henry McIlvaine. — Nov 21 1949-Jan 19 1950 | |
| Folder 52/7 | Parsons, Joseph. — Oct 24 1962 | |
| Folder 52/8 | Parsons, Oscar A.. — Feb 11 1959-Feb 17 1959 | |
| Folder 52/9 | Partridge, Maurice. — Apr 12 1946-Nov 23 1966 | |
| Folder 52/10 | Pasqual-Alvarez, J.. — Jan 24 1968-Feb 6 1968 | |
| Folder 52/11 | Paterson, Arthur Spencer. — Mar 16 1937-Dec 27 1965 | |
| Folder 52/12 | Paterson, Arthur Spencer. — Jan 24 1966-Feb 5 1980 | |
| Folder 52/13 | Paterson, Louise Spencer. — Nov 13 1962-Nov 17 1964 | |
| Folder 52/14 | Paterson, Toni. — Sep 1 1964-May 7 1974 | |
| Folder 52/15 | Patrekeyeva, Larissa. — Dec 18 1979 | |
| Folder 52/16 | Patry, Frederick. — Jun 8 1940-Jun 3 1964 | |
| Folder 52/17 | Patterson, Michael. — Nov 14 1972 | |
| Folder 52/18 | Patterson, Robert P.. — Apr 28 1976 | |
| Folder 52/19 | Pattie, Frank A.. — Nov 22 1958 | |
| Folder 52/20 | Pattison, J. H.. — Mar 3 1956 | |
| Folder 52/21 | Patton, Harry D.. — Jun 7 1957 | |
| Folder 52/22 | Patton, O.. — Oct 25 1949 | |
| Folder 52/23 | Patton, Robert A.. — Oct 11 1950 | |
| Folder 52/24 | Paul, John R.. — Jun 14 1957 | |
| Folder 52/25 | Pauling, Linus. — Jan 4 1972 | |
| Folder 52/27 | Pavlov, B. V.. — Nov 27 1963-Dec 28 1964 | |
| Folder 52/28-34 | Pavlov, Ivan Petrovich. — 1922-1935 Arranged in chronological order: Folder 28: Dec 7 1922 Folder 29: Feb 19 1925 Folder 29.5: Jul 1 1929 Folder 30: Dec 1 1930 Folder 31: May 14 1932 Folder 32: Mar 10 1935 Folder 33: Nov 8 1935 Folder 34: n.d. Correspondence with Ivan Petrovich Pavlov includes three signed letters and one signed document. The first, dated December 7, 1922, is addressed to the American Relief Administration in Petrograd while Gantt was Chief, expressing gratitude for the ARA's "rich gift of various articles so badly needed by the laboratory under my directorship." In December of 1930, a year after Gantt's departure for the United States, Pavlov writes: "your task is now to show in America our facts because they, of course, are universal" (December 1, 1930). In a final letter, March 10, 1935, Pavlov comments briefly on a conditional reflex experiment Gantt is conducting. The signed document was sent to Gantt on February 19, 1925, attesting that Gantt had permission to work in Pavlov's Institute of Experimental Medicine in Leningrad. (The signed document and letters are in Russian, with translations by Gantt.) Also included is a letter from Pavlov's son, Vsevelod, enclosing a portrait of his father. | |
| Folder 52/35 | Pavlov, Vsevelod Ivanovich. — Aug 2 1930 | |
| Folder 52/36 | Pavlov, Vsevelod Ivanovich. — Dec 10 1931 | |
| Folder 52/37 | Pavlov, Vsevelod Ivanovich. — Jun 16 1932 | |
| Folder 52/38 | Pawlowski, Albert A.. — Mar 16 1964 | |
| Folder 52/39 | Payne, R. Smith. — Dec 1 1937-Dec 16 1937 | |
| Folder 52/40 | Pearce, James W.. — Jan 9 1969-May 14 1969 | |
| Folder 52/41 | Pearce, Mary. — Jun 17 1965-Jun 24 1966 | |
| Folder 52/42 | Peard, Leslie H.. — Nov 4 1946 | |
| Folder 52/43 | Pearl, Raymond. — Mar 28 1938-Feb 21 1940 | |
| Folder 52/44 | Pearre, A. Austin Sr.. — Mar 30 1967 | |
| Folder 52/45 | Peck, Cecil. — Aug 18 1960-Aug 25 1960 | |
| Folder 52/46 | Peery, Thomas M.. — Feb 22 1949-Apr 19 1949 | |
| Folder 52/47 | Pekkarinen, A. A. A.. — Nov 28 1962 | |
| Folder 52/48 | Pelzman, Oscar. — Apr 8 1953-Jul 10 1953 | |
| Folder 52/49 | Pendergrass, V. E.. — Jul 28 1969 | |
| Folder 52/50 | Penfield, Wilder. — Dec 23 1938-Sep 29 1970 | |
| Folder 52/51 | Penn, S.. — Sep 6 1963-Nov 4 1964 | |
| Folder 52/52 | Penny, Gloria. — Apr 20 1961 | |
| Folder 52/53 | Peon, Raul Hernandez. — Feb 1964-Dec 13 1966 | |
| Folder 52/54 | Perez, Antonio. — Jan 18 1941 | |
| Folder 52/55 | Perez-Cruet, Agnes. — Aug 4 1963-Feb 12 1964 | |
| Folder 52/56 | Perez-Cruet, Jorge. — Apr 18 1955-Sep 23 1959 | |
| Folder 52/57 | Perez-Cruet, Jorge. — Sep 17 1960-Nov 1 1962 | |
| Folder 52/58 | Perez-Cruet, Jorge. — May 17 1963-Dec 2 1964 | |
| Folder 52/59 | Perez-Cruet, Jorge. — Jan 12 1967-Mar 7 1979 | |
| Folder 52/60 | Perkins, Nicholas. — 1957 | |
| Folder 52/61 | Perkins, W. R.. — Jun 20 1939-Apr 16 1940 | |
| Folder 52/62 | Perlin, Seymour. — Apr 2 1965-May 24 1971 | |
| Folder 52/63 | Perlstein, Meyer A.. — Mar 11 1944-Jan 7 1952 | |
| Folder 52/64 | Permutt, Solbert. — Dec 13 1960-May 31 1961 | |
| Folder 52/65 | Perry, Ralph B.. — Oct 25 1948 | |
| Folder 52/66 | Peters, John E.. — Jul 8 1949-Aug 9 1961 | |
| Folder 52/67 | Peters, John E.. — Jan 5 1962-Aug 10 1979 | |
| Box 53 | Petersdorf-Pshe | |
| Folder 53/1 | Petersdorf, James R.. — Jul 20 1979 | |
| Folder 53/2 | Petersen, H. E.. — Sep 25 1961-Apr 6 1962 | |
| Folder 53/3 | Peterson, Houston. — Jan 15 1938-Oct 26 1953 | |
| Folder 53/4 | Peterson, Ward Davis. — Jun 19 1954 | |
| Folder 53/5 | Peterson, William F.. — Feb 5 1941-Apr 16 1941 | |
| Folder 53/6 | Petr, Jaroslav. — May 14 1965 | |
| Folder 53/7 | Petrova, M. K.. — May 7 1947-Oct 18 1948 | |
| Folder 53/8 | Petrowsky, G.. — Jan 14 1932 | |
| Folder 53/9 | Pettet, Cecil Charles. — Dec 25 1967 | |
| Folder 53/10 | Pfeifer, Carl C.. — Sep 16 1954-May 27 1971 | |
| Folder 53/11 | Pfeiffer, John. — Jul 29 1949-Sep 27 1949 | |
| Folder 53/12 | Phelps, Winthrop M.. — Feb 19 1941-Jul 8 1954 | |
| Folder 53/13 | Pherrow, Mac. — n.d. | |
| Folder 53/14 | Philippopoulos, John D.. — Jun 22 1946 | |
| Folder 53/15 | Philips, William. — Apr 25 1957 | |
| Folder 53/16 | Phillips, W. A.. — May 3 1962-May 18 1962 | |
| Folder 53/17 | Philpott, William H.. — Aug 15 1965-Oct 13 1971 | |
| Folder 53/18 | Piaget, Jean. — Jul 15 1971-Nov 26 1971 | |
| Folder 53/19 | Pickenhain, Lothar. — Aug 7 1956-Oct 17 1966 | |
| Folder 53/20 | Pickenhain, Lothar. — Feb 23 1967-Dec 17 1978 | |
| Folder 53/21 | Pickens, Roy W.. — May 12 1964-Dec 16 1965 | |
| Folder 53/22 | Pickworth, F. A.. — Jun 20 1938-Jan 24 1939 | |
| Folder 53/23 | Pierce, H. F.. — Jun 18 1964 | |
| Folder 53/24 | Pieri, Lorenzo. — Jun 18 1964 | |
| Folder 53/25 | Pilersdorf, Sharon. — Sep 22 1967 | |
| Folder 53/26 | Pincoffs, Maurice C.. — May 19 1923-Nov 28 1949 | |
| Folder 53/27 | Pino, Castillo. — Nov 3 1958 | |
| Folder 53/28 | Pinsky, Harry A.. — Apr 18 1936 | |
| Folder 53/29 | Pinto, Teresa. — Sep 5 1955-Mar 20 1968 | |
| Folder 53/30 | Pisetsky, Joseph E.. — Oct 1956 | |
| Folder 53/31 | Pivnicki, A. Dimitrije. — Nov 11 1957-Dec 15 1957 | |
| Folder 53/32 | Plant, Elizabeth D.. — Dec 6 1976 | |
| Folder 53/33 | Platov, Henry. — Jul 13 1937 | |
| Folder 53/34 | Plittman, Jack C.. — Oct 22 1948 | |
| Folder 53/35 | Ploog, Detlev. — Jan 3 1975 | |
| Folder 53/36 | Plumlee, Lawrence A.. — Oct 22 1963-Jul 22 1969 | |
| Folder 53/37 | Plummer, Madeleine J.. — Oct 17 1941-Nov 1 1941 | |
| Folder 53/38 | Plutchik, R.. — n.d. | |
| Folder 53/39 | Podkopaev, N. A.. — Dec 9 1936-Oct 16 1947 | |
| Folder 53/40 | Podolsky, Edward. — Jul 23 1948 | |
| Folder 53/42 | Poggio, Gian F.. — Feb 26 1964 | |
| Folder 53/43 | Poist, Betsy. — Dec 26 1974 | |
| Folder 53/44 | Polin, Edward. — Sep 19 1943 | |
| Folder 53/44.1 | Poll, Erna. — Sep 8 1980 | |
| Folder 53/44.2 | Poll, Johann F.. — Jun 18 1938-Dec 18 1971 | |
| Folder 53/45 | Pollack, Cecilia. — Oct 16 1972-Feb 7 1973 | |
| Folder 53/46 | Pollitt, John D.. — Apr 27 1960-May 4 1960 | |
| Folder 53/47 | Pomerleau, Ovide. — Sep 12 1968-Nov 29 1968 | |
| Folder 53/48 | Poncher, H.G.. — Jan 8 1932 | |
| Folder 53/49 | Pool, J. L.. — Feb 10 1947 | |
| Folder 53/50 | Pool, Lynn. — Aug 18 1960 | |
| Folder 53/51 | Poorman, Louise, G.. — Dec 3 1964-Dec 8 1964 | |
| Folder 53/52 | Popov, E. A.. — Jun 14 1958-Mar 14 1960 | |
| Folder 53/53 | Popow, Nikolaus. — Jan 30 1946 | |
| Folder 53/54 | Porges, S. W.. — Apr 1974 | |
| Folder 53/55 | Porter, E. L.. — Jul 1 1944-Jan 13 1946 | |
| Folder 53/56 | Porter, Mary. — Jul 21 1937 | |
| Folder 53/57 | Porter, William N.. — Apr 13 1946-Apr 19 1946 | |
| Folder 53/58 | Portnoff, Alexander. — Jan 7 1941-Jul 30 1945 | |
| Folder 53/59 | Potbury, C.. — Oct 30 1930-Feb 17 1932 | |
| Folder 53/60 | Potts, Marguerite George. — n.d. | |
| Folder 53/61 | Powell, Robert. — Dec 24 1970-Jan 6 1971 | |
| Folder 53/62 | Powers, Francis F.. — Jun 10 1939 | |
| Folder 53/63 | Pozo-Lora, Rodrigo. — Nov 20 1957 | |
| Folder 53/64 | Pradham, Sachindra N.. — Sep 22 1959-Oct 12 1959 | |
| Folder 53/65 | Prather, Richard G.. — Feb 17 1960-Jul 20 1961 | |
| Folder 53/66 | Pratt, J. Richard. — Mar 15 1967 | |
| Folder 53/67 | Pravdiuk, Vasili. — Oct 11 1946 | |
| Folder 53/68 | Preston, George. — Jul 2 1942 | |
| Folder 53/69 | Prevo, D.. — Apr 11 1957 | |
| Folder 53/70 | Pribram, Karl. — Jun 21 1956-Feb 17 1969 | |
| Folder 53/71 | Price, Robert C.. — Feb 5 1913 | |
| Folder 53/72 | Prigal, Samuel J.. — Apr 22 1957-Jan 29 1960 | |
| Folder 53/73 | Prince, Robert L.. — Apr 14 1966 | |
| Folder 53/74 | Prochazka, Jaroslav. — Jun 9 1960-Aug 17 1960 | |
| Folder 53/75 | Proctor. — Jun 7 1950 | |
| Folder 53/76 | Proctor, Donald. — Sep 8 1972 | |
| Folder 53/77 | Proffitt, James L.. — Jan 14 1949 | |
| Folder 53/78 | Pronko, N. H.. — Nov 28 1956-Jul 29 1969 | |
| Folder 53/79 | Propper, Nikolai I.. — Mar 28 1937-Sep 24 1937 | |
| Folder 53/80 | Pshennikov, St. P.. — n.d. | |
| Box 54 | Puga-Reit | |
| Folder 54/1 | Pugacheva, Elizaveta. — Jan 23 1960 | |
| Folder 54/2 | Pusey. — Mar 22 1965 | |
| Folder 54/3 | Putland, William A.. — Jun 27 1968 | |
| Folder 54/4 | Putnam, Tracy J.. — Apr 30 1941-Jul 28 1947 | |
| Folder 54/5 | Pyke, L. R. D.. — Feb 20 1967-Nov 1 1967 |