Sidi Mubarak Bombay was sort of a combined guide, translator and nurse, and often the supervisor of the African laborers on expeditions through eastern and equatorial Africa in the 19th century.
Research:

SYMHC Classics: Moms Mabley
33:10

Behind the Scenes Minis: Self-talk Hoax
19:57

The Pompey Stone Hoax
35:25