William Joseph Hammer
1858–1934 (age 76)
Engineer
Biography
Engineer William Joseph Hammer played a pivotal role in the development of electrical technology, working closely with Thomas Edison to accelerate the adoption of practical lighting. His inventive mind also led him to lecture and document the history of electricity for future engineers.
Hammer’s advocacy for research and his own inventive contributions advanced America’s electrical industry, inspiring a generation of engineers to pursue discovery.