Well, sadly, the inventor of that delightful creation has passed. Herb Peterson introduced breakfast to the fast food industry - and was well-known as a person who truly loved McDonald's.
According to an article in the International Herald Tribune:
The Egg McMuffin made its debut at a restaurant in Santa Barbara that Peterson
co-owned with his son, David Peterson.
Rest in pease, Herb.
The McChronicles:a blog about, not affiliated with, McDonald's.