Lancelot took the L.R.C.P. and S (Ed) in 1876, after which he entered the service of the colony of Natal, in the Indian Immigration Department. Determining to enter the Church, he was ordained in 1883 by the Bishop of Maritzburg as assistant to the bishop of Indian missions, subsequently becoming diocesan superintendent of Indian missions and Canon of Maritzburg. In 1887 he obtained the degrees of M.D. and C.M. from Toronto University, which, in 1902, conferred upon him its degree of D.D., and in 1896 he graduated as M.D. at Durham University. In 1900 he was appointed dean of St John's, Kaffraria, and rector of Umtata, and at the same time resumed the medical profession, to serve in the South African war as medical officer of the Natal Indian Ambulance, receiving the Queen's medal with two clasps - Zuyla Heights, Relief of Ladysmith. In 1912 he went to Cape Town, where he was for a short time vicar and subdean of St George's Cathedral, and in 1913 was appointed rector of St Barnabas, Cape Town. Lancelot gained a commission in the RAMC as a temporary Captain on 14th November 1916 and served in France with the South African Native Labour Corps until 1918, when he served in a South African Military Hospital at Richmond, England. His only son, Lieutenant Ainslie Booth, R.A.M.C. was killed in action in France on 30th April 1916. Lancelot was the son of Mr L P Booth of Bishop Auckland. He died at Seapoint, Cape Town. [Information sources: British Medical Journal and Trinity College, Toronto Roll of Service]