About: http://webisa.webdatacommons.org/125584192

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	Mostly, his sources are letters, journals, speeches, etc. from presidents and other statesmen.
http://www.w3.org/ns/prov#wasQuotedFrom	pbnation.com