About: http://webisa.webdatacommons.org/405022314

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	His father was a slave, owned by Mrs. Kittie Custis, but bought his freedom by paying $1,000, and moved the family with him to Brooklyn, N. Y., in the year 1857.
http://www.w3.org/ns/prov#wasQuotedFrom	unc.edu