The correspondents are:
Joseph Manago, Prof. D. P. Matyushkin, Dr. Axel Mazuer, Dr. Johnjoe McFadden, Dr. H. Robert Horvitz (Massachusetts Institute of Technology), Annette Faux (Medical Research Council Laboratory of Molecular Biology), Dr. Eduardo Macagno, Joe Marinello, Dr. Lyndon McDowell, Dr. Ernst Mecke, Dr. Andrei Medvedev, Alexei Melkikh, Dr. Matthew Messelson, Martin Meyerson, Judith Herbertson (Mill Hill School), Andy Milne, Dr. R. K. Mishra, Dr. Nirmal Kumar Mishra, Roderick Braithwaite (History of the Mill Hill School Foundation), Dr. Graeme Mitchison, Dr. Dan Miulli, Dr. Roger Moreau, Gregory Morgan, Susumu Morimoto, Roger Morris, Dr. John Morrison, Marie Morran, Dr. Ezequiel Morsella, Richard Henderson (Medical Research Council Laboratory of Molecular Biology), Dr. A. K. Mukhopadhyay, Dr. Walter Munk, Dr. Christopher Murawsky, Richard Murphy, and Prof. Jay Muthuswamy.
Also includes the abstract of a paper by Donald MacLeod, and correspondence with Sir John Skehel concerning an event at Mill Hill School.
There is correspondence with Brenda Maddox for 2000-2003 in file PP/CRI/J/1/7/14/3.
Letters detailing sensitive personal circumstances have been extracted to files PP/CRI/J/1/8/24/1 and PP/CRI/J/1/8/25/1.