Raymond and Robert Floyd, who won this title in 2000 and 2001, posted a 12-under-par 60. They were joined in second place by Vijay and Qass Singh, as well as Hale and Steve Irwin, who won this crown in 2003.
Larry Nelson, who won last year with Drew, played this year with son, Josh. They opened with an 11-under-par 61 and share fifth place with the Pates, Jerry and Wesley, and Mark O'Meara, who is playing with son Shaun.
The Langers went out in 6-under 30 that included a 7-foot birdie putt by Stefan on the third. Stefan ran home a 40-foot birdie putt on the 11th. He made a 5-footer for birdie on the 14th.
They combined for a two-putt birdie on the par-5 16th. Bernhard, the 1985 and 1993 Masters champion, drained a 40-footer of his own for birdie at 17 to get to 12 under.
The Langers got up and down for birdie from right of the green at the par-5 closing hole to take the lead.
Davis Love III, with son Dru, stand at minus-10. They were joined in eighth place by Curtis and Tom Strange, Johnny Miller and son John II, as well as Lanny Wadkins, who is playing alongside son, Travis.
Arnold Palmer, playing with grandson Sam Saunders, posted an 8-under-par 64 to take 12th place. Bob Charles and son David are one stroke further back at minus-7.
The Kites, Tom and David, fashioned a round of 6-under-par 66 on Saturday. Jack Nicklaus and Jackie stand at minus-5 and were joined there by Craig and Chris Stadler.
Daniel and Lee Trevino carded a round of 4-under-par 68. The final duo is Fuzzy Zoeller and his daughter, Gretchen. They shot a 1-under-par 71.