He was the fourth son and youngest child of inventor Thomas Edison, and founder of Calibron Industries, Inc.
He was born on July 10, 1898, at Glenmont, the Edison home in Llewellyn Park in West Orange, New Jersey.
[4] After graduation, Theodore worked for his father's company, Thomas A. Edison, Inc., starting as a lab assistant.
He later founded his own company, Calibron Industries, Inc., and built his own smaller laboratory in West Orange.
In later years he became an ardent environmentalist and helped preserve Corkscrew Swamp Sanctuary in southwest Florida,[5] as well as Monhegan Island in Maine.