English: Speakers from the 1984 Summer Usenix Conference (Salt Lake City, UT). Please comment if you can identify people. Wish I was in the picture. :( Dennis Ritchie stands in the center (glasses, striped sweater). Steve Bellovin, in a hat, is standing in front of Dennis. To Dennis' left is Andy Tannenbaum ( the lessor or portrait mode - a.k.a. trb, not to be confused with Andy Tanenbaum the greater of MINIX fame or Andy in landscape mode). Behind trb is Bob Masters and Tom Teixiera. Crouching in front of Steve is Eric Allman. To Eric's left, Andrew Hume is crouching and making a snowball. Standing behind Andrew, Clem Cole is doing something suspicious with a can and a cup. To Clem's left is Donn Seeley. To Clem's right is Mike Karels. On Mike's right is Eric Finger. Crouching on the left is Peter Langston (long hair). Nancy Blachman is standing behind Peter. To her right is Andrew Koenig. Others include Erik Fair (tall) between Nancy and Dennis. Chris Torek is partially obscured by Erik. Way in the back, between Andy and Clem, Eric Schmidt is almost entirely obscured. On the far right, Sam Leffler is holding a bottle. Looking over Sam's right shoulder is Bruce Boden (face only). I (or others) may be able to add others (and edit this sentence out) over time. Spencer Thomas and Jay Lepreau (deceased now) must be standing there, but my memory is hazy what they looked like at the time. Taking a stab at four others: To Nancy's left that seems like it is Perry Flinn with the beard and hair parted in the center. Also it looks like Jim Mcginness directly in front of Clem, and that could be Jay with the camera looking back. Give who all is in the picture, it would make sense that would be Terry Hayes between Teixiera and Finger, but Eric's hair is obscuring too much of the face for me to be sure. It has been asked: How come everyone in this photo is smiling except Dennis Richie? trb responds "That's easy. Because we were with Dennis, and he was with us."