Joseph S. Hart was a witness to a slave manumission of Jenny, aged 26, owned by Samuel H. Burroughts-Hopewell. 22 Apr 1828 record p. 274 p. 440 Rachel, aed 21, woned by Joseph Hart-Hopewell. 16 sep 1826. Wit: Daniel Cook & Theophilus Hart. p. 206 in the Old Hunterdon book Jos. S. Hart was a household with a free black. Hopewell Township. 1830