Yarrow Mamout Residence Site Georgetown, Dent Place, NW(c.1736 – January 19, 1823) was a former slave, entrepreneur, and property owner in Georgetown, Washington, DC. Mamout has been described as a brickmaker, a jack of all trades, a charcoal maker, a ship loader, and a basket weaver.
Mamout was enslaved and taken to Annapolis from Guinea in 1752. He was originally from West Africa of the Fulani people and spoke the Fula language and rudimentary English. Because he could read and write in Arabic and could also write his name in English, historians believe he came from a wealthy Muslim family.
Samuel Beall and his son kept him in slavery. Beall owned a plantation in Takoma Park. After 44 years of being slave, Mamout gained freedom at the age of 60. He made enough money to purchase 3324 Dent Place NW in the early 1800s and was a financier who lent funds to merchants. He also owned stock in the Columbia Bank of Georgetown.
Mamout, a well-known Georgetown resident, lived to a very old age (and maintained his Muslim lifestyle after being freed by manumission). He owned bank stock and his own home.