Pictures from the early 1970s

Gerry Finn, John Jefferies, Ted Simon, and (in partial profile) Hans Boesgaard (?) at an all-staff reception.  Can anyone identify the location and occasion of this party?   Original film slide:  photographer unknown

Haleakala Summit 1971

Mees observer, Tom Pope

The Beginning of Infrared Astronomy on Mauna Kea 1971: The IFA Bolometer at the Cass Focus of the 88-inch (T. Simon at the eye piece. Original film slide by D. Morrison)

The IFA Bolometer Mounted on the 88-inch Telescope

The 88-inch Observer’s Control Console (left) and the Electronic Rack for the IFA Bolometer System (right)

Hale Pohaku Mid-level Facility 1971