^ abThe Blade, 2 February 2002. "'Italked to many people, now deceased, including his private secretary, and all said emphatically that he pronounced it "Willis"', said Ron Szymanski, local Jeep historian.[6] 'I can attest to the fact that Willys' relatives all say "Willis".' – However, Mr. Szymanski acknowledged that many Jeep workers pronounce the name 'Willies'."
^This is the pronunciation used by the company owner and founder, as opposed to "Willy's" or "Willies" /ˈwɪliːz/, although many people pronounce(d) it that way, and Mr. Willys "was probably the type who'd say: 'I don't care how you pronounce it as long as you buy my cars.'"[1]
^"J. N. Willys pronounced his name 'Willis', local Jeep historian says". Toledo Blade. The Blade. 2 February 2002. Retrieved 10 July 2021. In 1952, as Willys-Overland Motors was preparing for the 50th anniversary of the first Overland cars, The [Toledo] Blade declared: 'It's "Willis."' – A number of reporters and editors at the time had known Mr. Willys personally.
^In 1952, the Toledo Blade newspaper got to the bottom of the story and concluded it was "Willis".[3][4]
^P. Findlay (writer, director) (2006). Man and Jeep (1-hour TV documentary (runtime 44:31 min)). Barna-Alper Productions. Discovery Times. Archived from the original on 2021-12-20.{{cite AV media}}: CS1 maint: others in cite AV media (notes) (link) "Ron Szymanski, Jeep Historian (on-screen credit)", from time 11:05