Scientists who work at Los Alamos National Laboratory, facility for designing atomic bombs in Los Alamos, NM

Group of scientists in front of building / two shots of scientist Dr. David Long standing on stairs of same building holding log book and talking to scientists and his scientist wife Dr. Jane Long sitting next to him on stairs / people coming in and out of post office / two dogs on lawn in front of building, cars driving by on street / elementary school students running past school buildings, some stop to look at camera filming them / students getting on school buses / Note: exact day not known