With 1-2 other people

Cosmic Ray Conferences C1 Piero Spillantini and unidentified others at the 2004 European Cosmic Ray Symposium	Rockefeller Institute C1 Unidentified individuals at the Light and Quanta Lectures at Rockefeller Institute	Los Alamos C6 Unidentified individuals raising a turret to top of 10,000 N shelter at Los Alamos National Laboratory	Mack Julian C5 J.E. Mack and B.C. Benjamin eating field lunch during survey of "Z"	Los Alamos C4 Unidentified individuals installing equipment a Los Alamos National Laboratory
Los Alamos C3 B.C. Benjamin and B. Brixner drilling a channel on top of 10,000 yd. N shelter	Los Alamos C2 Benjamin C. Benjamin and George A. Economou preparing Torpex charges	Los Alamos C1 View of the Los Alamos Ranch Trading Post	Atomic Energy Research Establishment C1 Atom School Opens	CERN C1 Pope John Paul II touring CERN
Caltech C1 Daniel Kevles and Judith Goodstein looking through California Institute of Technology archives	Breslau University C1 Unidentified mechanics working at Breslau University	Ludeke Rudolf C1 Rudolf Ludeke and Bruce D. Sartwell conversing	Lindbald Bertil C1 Bertil Lindblad (right) and Adriaan Van Maanen	Lipkin Harry C1 Harry Lipkin conversing with R.N. Haslam and Peter T. Demos
Emo Lorenzo C1 Andreana [Ecno]?, Elfreda Segre and Lorenzo Emo enjoying the outdoors	Meggers William C27 William Megger with Siegbahn and others at the Nobel Institute	Sard Mary C1 Jean Heustis with Mary Beth Marshall Sard laughing	Goudsmit Jeanne C3 Jeanne Goudsmit conversing with unidentified others in Rome, Italy	Goudsmit Jeanne C2 Jeanne Goudsmit with unidentified women enjoying the outdoors