What profession is held in common with Donald Sawyer and Roberto Gavaldón?
Roberto Gavaldón Roberto Gavaldón (June 7, 1909 in Jiménez, Chihuahua – September 4, 1986 in Mexico City) was a Mexican film director.
Alastair Denniston Commander Alexander "Alastair" Guthrie Denniston (1 December 1881 – 1 January 1961) was a British codebreaker in Room 40, first head of the Government Code and Cypher School (GC&CS) and field hockey player. Denniston was appointed operational head of GC&CS in 1919 and remained so until February 1942.