John Scott Lennox Gilmour VMH FLS (28 September 1906 – 3 June 1986) was a British botanist, curator of the Cambridge University Herbarium, and later director of Cambridge University Botanic Garden and Fellow of Clare College, Cambridge.
[3] From 1930 to 1931 he was Curator of the Herbarium and Botanical Museum, Botany School, Cambridge University, from 1931 to 1946 Assistant Director, Royal Botanic Gardens, Kew, from 1946 to 1951 Director, Royal Horticultural Society, Wisley and from 1951 to 1973 Director, Cambridge University Botanic Garden.
With William T. Stearn he issued two exsiccata-like works Herbarium florae Cantabrigiensis and Sertum Cantabrigiense exsiccatum (1933).
John, a declared atheist, teamed up with Fr Maycock of Little Saint Mary's to help found the Cambridge Cyrenians, dealing with the homeless.
[7] On returning to Cambridge, Gilmour succeeded Humphrey Gilbert-Carter as director in 1951, he was an important force in the development of the Eastern Garden, once the Cory Fund monies became available, and the Cory Laboratory and glasshouses were constructed in 1957.