From 1927 to 1928 he served as governor of the Red Sea Province of Sudan, and from 1929 to 1930 was Governor of the Mongalla Province of Sudan.
Leonard Fielding Nalder (1888-1958) was a British colonial administrator who was Governor in turn of Fung Province (1927-1930) and Mongalla province (1930-1936) in the Anglo-Egyptian Sudan.
It was described by Cook in 1997, and is known from Sudan (including Mongalla, the type location).
Mongala District, an administrative region of the Democratic Republic of Congo