About: http://webisa.webdatacommons.org/48396633

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	Maps are available from the National Archives, the Library of Congress, county agencies, and other libraries and historical societies.
http://www.w3.org/ns/prov#wasQuotedFrom	genealoger.com