As usual, no prizes but everyone's acclaim. Extra credit for identifying the people. I haven't a clue. Lewis Clark's photo from 6x9cm negative.

Bearflag,
Ok, let's get this party started.
Here's my SWAG (scientific wild ass guess):

The gal in the middle is Ruth Dyar Mendenhall and the guy on the right is John D. Mendenhall (white shirt and Fedora). Granted the guy on the right looks a bit more than J. Mendenhall than the gal in the middle looking like R.D. Mendenhall.
Some quick Google Fu shows them possibly in California in 1934, but not yet doing the big Sierra climbs. Given that, then this might be a lesser, western Sierra peak? More accessible from LA, etc?
If the gal is Ruth Mendenhall, it's possible that this book would have a list of her ascents by date. Then one might be able to more easily identify what peak they are on.

Woman on the Rocks: Ruth Dyar Mendenhall
https://www.spotteddogpress.com/books-2 ... endenhall/

Ok, who's next?

Well, Woman on the Rocks says Ruth first met John Mendenhall at Tahquitz in June 1938, and it sounds like her first Sierra climb was, with John and others, the first ascent of the Swiss Arete later that year. Other than that, I don't have a clue.

BFlag,
Take a look at the skyline on this pict:
View north from Petitt Peak, Yosemite National Park
http://www.snwburd.com/bob/trip_photos/ ... 611_w.html
I'm guessing that they are on some peak or mountain northwest of Petitt Peak.
Puite Mountain, Price Peak or Bath Mountain maybe?

^Well spotted. They are on Volunteer Peak, just a bit to the north. This link might work:
http://caltopo.com/view#ll=38.0061,-119 ... 0.66,43.46

The high point in the background is Matterhorn Peak - I knew that ridge looked familiar. The summit rocks match in this shot:
http://www.summitpost.org/volunteer-pk- ... 5/c-154745

The kid in the beanie bears a resemblance to Leland Chase on your site:
http://www.thehighsierra.org/portraits.htm

One more clue: the (credited) FA of Pettit Peak:
http://www.yosemite.ca.us/library/climb ... peaks.html
Climbed by Lewis F. Clark and Virginia Greever on August 1, 1934, at which time a cairn was found indicating an earlier ascent.
So maybe she's the woman in the photo.

I neglected to mention that I do have the date on this photo, August 1, 1934, as noted on its box. I'm not sure though that Glen Dawson's "Mountain-Climbing on the 1934 Outing" in the '35 Bulletin fully clarifies the location. I'll dig around and see if I can find some more evidence in the old photos that I haven't scanned. Have a read of Climbs from Benson Lake:



Here is another shot from the same day, same woman, different peak. This must be Virginia.

That might be Pettit Peak, looking SSE. In the skyline at the left you can see Banner/Ritter/Lyell/Maclure.

http://caltopo.com/view#ll=37.9852,-119 ... .47,150.53

There was a tree on top?

OK, another positive ID for first photo, Volunteer Peak.
http://www.summitpost.org/volunteer-pk-summit/478545/c-154745


Pettit sure looks plausible for second. Damned if I can explain the pine needles in top of photo.

bearflag wrote:Pettit sure looks plausible for second. Damned if I can explain the pine needles in top of photo.

It's possible Pettit Peak might have had some sort of tree on it back in the day...
Check this shot (BTW, thank you Bob Burd)
http://www.snwburd.com/bob/trip_photos/ ... 609_w.html

On the other hand, take a look at this view south from Petitt Peak. The Petitt Peak skyline is different from the historical photo relative to Banner and Ritter location:
http://www.snwburd.com/bob/trip_photos/ ... 614_w.html

Perhaps, per the Climber's Guide text below, the new mystery peak might be Regulation or West Peak (or possibly Hooper Peak)?
If the mystery peak was ascended on the same day (August 1, 1934) the daylight in the photo implies a few hours difference, the peaks mentioned above would be the closest ones to Volunteer Peak.

http://www.yosemite.ca.us/library/climb ... peaks.html
Pettit Peak (10,775)
Climbed by Lewis F. Clark and Virginia Greever on August 1, 1934, at which time a cairn was found indicating an earlier ascent. It is an easy traverse from Regulation Peak and can also be traversed from West Peak. Class 2.

Also, PeakFinder's Southeast view at 143 degrees on Piute Mountain lines up Mt. Ritter and Mt. Lyell skyline nicely. However, BB's photo tells a little difference story..
http://www.snwburd.com/bob/trip_photos/ ... 155_w.html
http://www.snwburd.com/bob/trip_photos/ ... 156_w.html
Another clue might be the mountain mass to the right of the base of the tall rockstack. Interesting..

To the right of the base of the tall rockstack would be the Clark Range. At the very right are the slopes of Tuolumne Peak.