With thanks to Neil Pollock this great 1965 photo. Neil runs the Maher Cup Blog and the description of this photo can be found in full here.
With thanks to Chris Nicholes, the following pic and description from the construction of Blowering Dam: 1965. Grouting crew at Blowering Dam. Some names mentioned are Gary Ballard, Max Hausler, Doug Saunders, and Ron Rowlings kneeling. Others unidentified.
Huge thanks to Chris Nicholes for this pic and description: Morrison Knudsen Utah McDonald Engineering staff, Blowering dam project 7/12/65. From left: W Johnson, W Lucas, G Nuttal, A Dynon, F Foy, E Close.
With thanks again to Chris Nicholes: (Click on the picture for the full size)