Time magazine called Philo T. Farnsworth one of the best mathematicians and inventors of the 20th century, earning over 150 patents for TV, amplifiers, cathode-ray tubes, vacuum tubes, fusion reactors, satellites.

Philo T. Farnsworth Biography  (ETHW) http://ethw.org/Philo_T._Farnsworth

Philo Taylor Farnsworth, Sr. - Bio written by a Farnsworth relative
https://www.geni.com/people/Philo-Farnsworth/6000000010888270283

Farmsworth tribute site http://www.farnovision.com/

The Farnsworth Chronicles http://www.farnovision.com/chronicles/index.html