Marr, David (See also: Candidates, Applicants, References (SB/1/3)), 1970-1980
Martin, Steve (Lecture - Mathematical Sciences Research Institute), 2007
McElroy, William D. (Symposium on the Chemical Basis of Heredity - Johns Hopkins University), 1955-1956
McGraw-Hill Book Company (See also: Ryan, Francis J.), 1962-1969
- 1962; 1969
McKay, Ronald D. G. (See also: Candidates, Applicants, References (SB/1/3)), 1980-1982
Medical Research Council - Fellow Symposium on Molecular and Cellular Biology, 1983
- Bound book of letters of praise; See Scope and Content above for list of writers
Medical Research Council, 1956-1964
- (See also: Institutional Correspondence (SB/1/2) and Subject Files (SB/4))
Melchers, Fritz (Basel Institute for Immunology), 1981-1988
Michie, Donald (See also: Candidates, Applicants, References (SB/1/3)), 1977
Miller, David M. (See also: Candidates, Applicants, References (SB/1/3)), 1988
Miller, Eric S. (See also: Candidates, Applicants, References (SB/1/3)), 1989-1991
Mitchison, (Nicholas) Avrion, 1964-1980
- 1964; 1972-1973; 1980
Mitchison, J. Murdoch, 1953-1988; 2001
- 1953-1957; 1971-1972; 1988
Morris, N. Ronald (See also: Candidates, Applicants, References (SB/1/3)), 1977-1983
- 1977; 1980; 1983
Naito, Takayuki (See also: Candidates, Applicants, References (SB/1/3)), 1989-1992
National Academy of Sciences - Congratulatory Letters, 1977