About: http://webisa.webdatacommons.org/203113089

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	You could look for their publications, such as a brochure put out by group, or diaries and letters written by the people involved.
http://www.w3.org/ns/prov#wasQuotedFrom	netplaces.com