About: http://webisa.webdatacommons.org/2579036

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	1864-006: John S. Martin vs. Mary Martin, etc.: Will of John Haden, 1820, lists slaves, including Jack, a shoemaker.
http://www.w3.org/ns/prov#wasQuotedFrom	virginia.edu