Moore was appointed a writer (i.e., clerk) by the
Royal African Company in 1730 and sailed for the company's
Gambia River entrepôt on July of that year. He left the region in April 1735 after also serving as a
factor (agent) for the company. Moore was one of the first Englishmen to travel into the interior of Africa, serving in and visiting numerous towns and trading posts along the Gambia River from its mouth to the
Guinea Highlands, hundreds of miles inland. Moore's observations were published as
Travels Into the Inland Parts of Africa. The short account describes in rich detail the physical and cultural geography of the region before the intensification of the
Atlantic slave trade and the resulting depopulation and economic disintegration. Moore's work and
Richard Jobson's
The Golden Trade were the only detailed accounts of
Gambia before the colonial period. Excerpts from
Travels Into the Inland Parts of Africa were published in several subsequent volumes on exploration and the slave trade, including
Samuel Johnson et al.,
The World Displayed (1740);
Thomas Astley’s
A New General Collection of Voyages and Travels (1745); and Elizabeth Donnan’s
Documents Illustrative of the Slave Trade to America (1931). ==Association with Job ben Solomon==