Robert E. Gilka Robert E. Gilka ( July 12 , 1916 -- June 25 , 2013 ) was an American photojournalist best known for being an editor and director of photography at `` National Geographic '' for 27 years .
Robert E. Gilka Robert E. Gilka ( July 12 , 1916 -- June 25 , 2013 ) was an American photojournalist best known for being an editor and director of photography at National Geographic for 27 years .