
David O. Caldwell, Robert Arvel Schluter, and David A. Hill in laboratory, circa 1961

Description
David O. Caldwell, left, speaks with Robert Arvel Schluter, wearing jacket, and David A. Hill in a laboratory.
Original Caption: "Fiber scintillator detector and electronics for detection of 'strange particles' and 'hyperons' Prof. D. Caldwell, Prof. R. Schluter and Dr. D. Hill"