Albert (fl. 1820s, 1830s, 1840s), and Osborne (fl. 1840s, 1850s), brothers, were enslaved bricklayers and plasterers of notable skill. The two men belonged to the prolific brick builder Dabney Cosby, and their high quality work, especially in the plastering technique called "roughcasting," was an important component of Cosby's building business. Cosby worked extensively in...