About: http://webisa.webdatacommons.org/436149950

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	These letters were sent by officers, enlisted men, the Secretary of State, the President, Governors, private persons, and other government officials.
http://www.w3.org/ns/prov#wasQuotedFrom	sd.gov