He had laboratories at Menlo Park & West Orange, New Jersey
... One of Sprague's contributions to the Edison Laboratory at Menlo Park 
was to ..... "Glenmont" in Llewellyn Park in West Orange, New Jersey, which he 
had... [DOC] [TLE] The West Orange Laboratory - Charles Edison Fund [PAR] Young Tom's First Laboratory ... moved his talents and tools from Menlo Park to 
his great new laboratory at West Orange, New Jersey, on November 24, 1887.