Southern Sotho writer and folklorist whose early work set the stage for much South African indigenous literature.

Mangoaela grew up in Basutoland (now Lesotho), where he received his primary education, later attending the Basutoland Training College, where he received a teaching certificate in 1902. As teacher and minister he worked at the Koeneng Mission School, meeting another early pioneer writer from Basutoland, E.L. Segoete, who was pastor there. From 1910 he taught and worked at Morija, a mission station, as a bookkeeper, translator, and later (1954–58) as editor of the journal Leselinyana (“The Little Light”).

Quite early he had begun writing—first in a series of Sotho readers for schools, then at Morija a study of Lesotho under European rule, Tsoe-lopele ea Lesotho (1911; “The Progress of Lesotho”), and a collection of 54 hunting stories, Har'a libatana le linyamat'sane (1912; “Among Beasts and Animals”). He then contributed to a Grammar of the Sesuto Language (1917) and put together 82 praise songs under the title Lithoko tsa marena a Basotho (1921; “Praises of the Sotho Chiefs”), giving an early emphasis to an important genre in African oral literature.