Overview
William Paxton is a computer scientist at the University of California, Santa Barbara. He is one of the founders of Adobe Systems and became one of the original designers and implementors of the PostScript page description language.
In 2021, Paxton was awarded the Beatrice M. Tinsley Prize for developing the MESA software for computational stellar astrophysics.
Stanford
Paxton received his PhD from Stanford in 1977. He worked with Doug Engelbart at the Stanford Research Institute where the group would build the Online System (NLS) and was there during "The Mother of All Demos".
Xerox PARC
After leaving Stanford, Paxton would join the Xerox Palo Alto Research Center (PARC) where they were working on emerging technologies, including Ethernet, networked personal computers, bitmap displays, graphical user-interfaces, and laser printers.
From Wikipedia (CC BY-SA 4.0).