About: http://webisa.webdatacommons.org/56783379

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	Graces father was a machinist by trade but also had a patened invention for the slide rule according to grandpas notes.
http://www.w3.org/ns/prov#wasQuotedFrom	genealogy.com