English architect and landscape architect. He became chief assistant to W H Romaine-Walker in 1901 and a partner in 1911. They worked together on the Tate's Duveen Gallery, the British Museum's Elgin Marbles Gallery, Rhinefield Lodge and Great Fosters. Jenkins was born at Torquay, the son of a marble mason. His elder brother, Frank Lynn-Jenkins, was a sculptor. Gilbert Jenkins was the fourth president of the Landscape Institute (then the ILA), from 1935-1937.
