 The noted race horse, Lexington (horse) was stabled at the Bingaman plantation while being trained by John Benjamin Pryor, the horse trainer at the top of his field.Bingaman was a slaveholder, holding 230 slaves in 1850 and 310 in 1860.Bingaman had a relationship with a free-black woman, Mary E. Williams, and may have fathered as many as six children