Douglas Engelbart
Douglas Carl Engelbart was an American engineer and inventor, and an early computer and Internet pioneer. He is best known for his work on founding the field of humancomputer interaction, particularly while at his Augmentation Research Center Lab in SRI International, which resulted in the invention of the computer mouse, and the development of hypertext, networked computers, and precursors to graphical user interfaces. These were demonstrated at The Mother of All Demos in 1968. Engelbarts Law, the observation that the intrinsic rate of human performance is exponential, is named after him.
Engelbart was born in Portland, Oregon on January 30, 1925, to Carl Louis Engelbart and Gladys Charlotte Amelia Munson Engelbart. His ancestors were of German, Swedish and Norwegian descent.
Source: Wikipedia