Inventor Name
Hammer, William Joseph
Repository
National Museum of American History
Smithsonian Institution
Archives Center
P.O. Box 37012
MRC 601/Room 1100
Washington, DC 20013-7012
202-633-3270
http://americanhistory.si.edu/archives
Physical Description
38 cubic feet
Summary
Hammer was born in 1858, in Schuylkill County, Pennsylvania. In 1878 he became an assistant to Edward Weston of the Weston Malleable Nickel Company . In 1879, he began his duties as laboratory assistant to Thomas Edison at Menlo Park, NJ. He assisted in experiments on the telephone, phonograph, electric railway, ore separator, electric lighting, and other developing inventions. Hammer’s papers include scientific notes and notebooks, articles and clippings, patents, reprints, diagrams, and blueprints from Hammer’s association with Edison and his later career.
Finding Aid
http://amhistory.si.edu/archives/d8069.htm
