Lendon was born in
Kent and educated at
Maidstone Grammar School,
King's College, London, and
University College, London, where he gained his MD. and MRCS. degrees, and arrived in South Australia in 1883. In 1884 he was, as a Government Medical Officer, sent to
Bordertown to suppress an outbreak of
smallpox, and was a member of the Medical Board from 1899 to 1932 and its president from 1912. He served as honorary physician to the
Adelaide Hospital 1891–1894. He was president of the South Australian branch of the
British Medical Association for two separate terms. and saw it progress from a near-bankrupt organization to a vigorous, progressive and well-endowed institution. He also served for several years as national president of the
Australasian Trained Nurses' Association. He was appointed patron of both organizations on his retirement. He was an occasional lecturer at the University of Adelaide and several collections of his lectures have been published. ==Publications==