I recently listened to the Beach Boys' Party! Uncovered and Unplugged album. The first time I heard the album, I noticed something about "Hully Gully #3" (track 24 on disc 1). At about 1:45, Mike Love says, "Right on into 'Lonesome Traveller.'" It's a reference to the Kingston Trio's medley of "Shady Grove/Lonesome Traveller" on their live album ...from the Hungry i. In the transition, one of the Kingston Trio says, "Right on over to 'Lonesome Traveller.'"
I knew that Al Jardine was a fan of the Kingston Trio and that he suggested that the Beach Boys record "Sloop John B" based on their version, so I thought it interesting that this nod in the direction of the Kingston Trio came from Mike Love.
I lookt up the recording dates and discovered that the backing track for "Sloop John B" (12 July 1965) was actually recorded before "Hully Gully #3" (8 September 1965).