Joseph, Sir Keith 1959

Knuth, D.E. (history of 'time-sharing') 1974 (Includes a copy of a letter on Strachey's terminology 1968)

Landin, P.J. (Strachey's carbons only) 1965

Laski, J.G. (mathematical semantics and Adams Prize work) 1974

Levinstone, A. (CPL) 1966-1967