Henry Way Kendall (December 9, 1926 – February 15, 1999)[1] was an American particle physicist who won the Nobel Prize in Physics in 1990 jointly with Jerome Isaac Friedman and Richard E. Taylor "for their pioneering investigations concerning deep inelastic scattering of electrons on protons and bound neutrons, which have been of essential importance for the development of the quark model in particle physics.

[4] In the late 1960s and early 1970s, Kendall worked in collaboration with researchers at the Stanford Linear Accelerator Center (SLAC) including Friedman and Taylor.

These deep inelastic scattering results provided the first experimental evidence that the protons and neutrons were made up of point-like particles, later identified to be the up and down quarks that had previously been proposed on theoretical grounds.

He did extensive rock climbing in Yosemite Valley, followed by expeditions to the Andes, Himalaya and Antarctica, photographing his experiences with large format cameras.

[6] On April 7, 2012, the American Alpine Club inducted Kendall into its Hall of Mountaineering Excellence at an award ceremony in Golden, Colorado.

[3][10] He bypassed two pre-dive checklists for his Cis-Lunar MK-5P Mixed Gas rebreather and entered the spring basin without his dive buddy from the National Geographic Society.