Blanchard-1

Helen Augusta Blanchard is buried in this family plot in Portland's Evergreen Cemetery. She held over two-dozen patents and was the most successful female inventor of the 19th century. Troy R. Bennett | BDN

Helen Augusta Blanchard is buried in this family plot in Portland’s Evergreen Cemetery. She held over two-dozen patents and was the most successful female inventor of the 19th century. Troy R. Bennett | BDN