In 1931 Leonard's brother,
Charles Sharland, who was a cabinet maker, went out to southern Sudan to Loka and to start a trade school in
Lainya, west of
Juba. Two years later Leonard followed him. Leonard joined the
Gordon Memorial Sudan Mission of the
Church Missionary Society (CMS) and left for Sudan in 1934. His first station was at Malek, on the banks of the
River Nile where he served a sort of apprenticeship under the original pioneer missionary of the mission in Sudan,
Archdeacon Shaw. He spent a time acting as headmaster in Nugent School Loka, but his main work was amongst the cattle keeping
Dinka people. He worked at the mission stations at Akot, Gel River and Panekar, finally ending his time with the mission in
Rumbek, where he saw the rapid changes as
Sudan gained independence. As an ordained minister he had a central pastoral ministry, but was also very involved in education, and a certain amount of building. He was described as "one of these rare men who can be appointed to educational, eveangelistic or pioneer missionary work and generally combines the three together". He was made a
Canon of
Khartoum Cathedral in 1951. Leonard returned from leave in England in 1951 with a wife and when he left in 1958 had three sons. From 1946-1955 Leonard was the field editor of the ‘Southern Sudan Mailbag’ which brought news, mostly in the form of letters, from members of the Gordon Memorial Sudan Mission. ==A Clergyman in England==