Paving a Road Bordering Greenfield Village, July 1929

The Menlo Park complex was an all-male environment; the closest workaday involvement of women -- not forgetting that Edison and several of his personnel were married -- was at the Sarah Jordan boardinghouse. Offering room and board for unmarried employees at the complex, it was operated by Sarah Jordan, a distant relative of Edison's. The house also played host to the experimental lighting system installed throughout Menlo Park in December 1879.

When Edison moved to Menlo Park, New Jersey, in spring of 1876 the laboratory building contained his entire operation -- a handful of collaborators, office, library, and machine shop as well as laboratory. As the scale of Edison's investigations grew so did the complex, but this building -- dedicated to experimental activities -- was always understood to be the heart of the enterprise.

This building was built in late 1878 as Edison's work on electric lighting expanded. The first floor provided office space for accounting, bookkeeping, and patent applications; upstairs was a superbly stocked technical library. The building also played another key role: as a reception area for journalists and other visitors it provided a disarming first impression of Edison's success and ambition.