About: http://webisa.webdatacommons.org/272014870

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	The most significant ports for North America included, Boston, Philadelphia, Grosse Ilse, City of Quebec, Montreal in Province of Quebec, Baltimore, especially 19th Century New York, Portland Maine, New Orleans, Atlanta, San Francisco.
http://www.w3.org/ns/prov#wasQuotedFrom	familysearch.org