[1] He was educated in Bury, and at Downing College, Cambridge, where he received a Diploma in Agriculture in 1905.
[1][2] From 1927 to 1938 he was Principal of the Imperial College of Tropical Agriculture in Trinidad,[3] and worked from there in Australia, Fiji and New Guinea.
[2] In 1938 Evans joined the staff of the Royal Botanic Gardens, Kew,[6] where he was Economic Botanist (1938–1954) and, from 1941 to 1943, acting Director.
[1][2][7] He can be seen in the short colour film World Garden by cinematographer Geoffrey Unsworth in 1942.
[1] His papers, covering the period 1906 to 1955, are held at the Bodleian Library in Oxford.