About: http://webisa.webdatacommons.org/446700907

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	Johnson was a leader in the American Tennis Association, the black counterpart to the all-white United States Lawn Tennis Association.
http://www.w3.org/ns/prov#wasQuotedFrom	vahistorical.org