Does anyone have information about any of these people listed below, slaves or otherwise?

Loudoun County, Virginia Will Book Abstracts, Books A-Z, Dec 1757-Jun 1841

BRENT, George
S/A with Exor Joanna LEWIS: legacies to Martin BRENT, Hugh BRENT, dower to Joanna LEWIS (given Negroes Shadrack, Mary & child), Wm. M. POWELL (given Negroes Anthony & Nelson), Willis BRENT, Martin BRENT (given Negro Sarah), Hugh BRENT (given Negroes Solomon & Rachel). Scrs: Leven POWELL, Benja. GRAYSON, Jos. LANE. RtCt 15 Jan 1799. [F:76]