Co-founder of the favorite fast food string In-N-Out Burger and credited while an innovator for the drive-thru hamburger cafe. The 1st In-N-Out Burger was opened up in 1948 in LA, California. It just took a year or two for five even more restaurants to start and during his death, a complete of 18 shops was regarded as open up. He founded the junk food string alongside his wife Esther Snyder. David Edgerton may be the co-founder of another hamburger junk food string referred to as Burger King.