About: http://webisa.webdatacommons.org/299644625

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	Nehemiah had a brother named Asa, b. 1788, whose wife was named Mary (for which Polly was a common nickname) and their children's names match those you listed above.
http://www.w3.org/ns/prov#wasQuotedFrom	clevelandareahistory.com