  In writing this biographical memoir of John Hammersley, we have tried to
communicate something of the character of the person, and of the impact of his
scientific achievements across lattice models (for example, percolation,
self-avoiding walks, first-passage percolation, dimer models), stochastic
processes (including subadditive ergodic theory), Monte Carlo methods, applied
probability, statistics, and other areas to which he contributed. There is also
an extended account of his earlier life, taken from autobiographical notes
written around 1994, together with a list of his published work.
