Matt,
The gentleman to Doyle's right is Crandall Addington. One of the few times I have ever seen a picture of him without his cowboy hat on! That is indeed Slim in the background talking to the press. The player to Doyle's left who is mucking his cards is Bobby Hoff I THINK. The year is either 1976 or 1977 (Doyle won both years). Crandall came in second in 1978 (Bobby Baldwin won), but Doyle was not at that final table. Below is a story told by Lou Krieger about a BIG hand in the '78 WSOP between Addington & Baldwin.

Andy - Las Vegas

Lou's Web site URL is: http://www.loukrieger.com/index.html

During the 1978 World Series of Poker no-limit Hold'em championship Bobby Baldwin, then a professional poker player and now President of the Bellagio Hotel in Las Vegas, was matched up against San Antonio real estate investor Crandall Addington for all the marbles.

Addington was heavily favored at the time, having about $275,000 in chips to Baldwin's $145,000. Baldwin bet before the flop and Addington called. The flop was Qd 4d 3c. Baldwin bet $30,000. What could he have? A flush draw or straight draw was a possibility. So was a pair of queens.

Crandall Addington called without a moment's hesitation, a sure sign he also had a good hand. The Ad fell on the turn, making a straight and a flush distinct possibilities. Baldwin made a $95,000 bet, adding it to the $92,000 already in the pot, and leaving himself with only a few remaining chips if he lost the hand. Addington went into deep thought. If Addington called and won, Baldwin would be nearly broke, and he would almost surely be the winner. If he called Baldwin's bet and lost, the tables would be turned and Baldwin would then be favored to win the event. If he folded, he would still have a substantial chip lead on Baldwin and still be favored to grind him down as the tournament wore on.

Addington folded. As Baldwin gathered in the pot, he tossed his cards toward the center of the table. They were the 10h 9h. Baldwin had run a naked bluff, winning a $92,000 pot with absolutely nothing - not even a draw. That turned the tide and Bobby Baldwin became the 1978 World Series of Poker champion - although whether he won it or stole it right out from under Crandall Addington's nose is subject to interpretation.