Was Dr Douglas engelbart ever an orthopedic surgeon?

Dr. Douglas C. Engelbart (born January 30, 1925) is an American inventor and early computer pioneer. He is best known for inventing the computer mouse,[1] as a pioneer of human-computer interaction whose team developed hypertext, networked computers, and precursors to GUIs; and as a committed and vocal proponent of the development and use of computers and networks to help cope with the world's increasingly urgent and complex problems