About: http://webisa.webdatacommons.org/144366695

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	From 1965 until his death in 2006, James A. Marshall surveyed North America???s ancient earthworks, amassing a vast collection of maps, aerial photographs, survey notes, and other documents.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com