Yarrow Mamout (c. 1736 – January 19, 1823)[1][2] was a formerly enslaved African entrepreneur and property owner in Georgetown, Washington, D.C. An educated Fulani Muslim, he gained his freedom in 1796 after 44 years held in bondage.

A member of the Fulani people, he spoke the Fula language and could read and write Arabic and rudimentary English.

[3] After 44 years in slavery, Yarrow was freed at the age of 60 when Brooke Beall died in 1796, manumitted by his enslavers who believed he was too old to work anymore.

According to his obituary, penned by Charles Willson Peale, he was buried in the corner of his yard where he was accustomed to pray; however, a 2015 archaeological dig failed to unearth any remains.

[8][9] Peale's obituary was published in the Gettysburg Compiler and was reproduced in 38 newspapers across the United States, testifying to the unique life story of the enslaved African Muslim turned entrepreneur and property owner.

[4] Two years after his father's death, Aquilla purchased a farm in Washington County, Maryland, and moved there with his wife, Mary "Polly" Turner, a midwife and former slave.

[4][5][7] They are held in the permanent collections of the District of Columbia Public Library (Simpson) and the Philadelphia Museum of Art (Peale).