People in the banner photographs
 

Left to right:

• William Lipscomb and Herbert Hauptman at an IUCr Congress and General Assembly.
• Irving Langmuir, J.D. Bernal and Dorothy Hodgkin at the 1937 British Association Meeting.
• Walter Hamilton, Helen Berman, and Tom Koetzle on their way to a meeting in Aarhus in 1972.
• Richard E. Marsh and Linus Pauling, at Caltech during Pauling's 85th birthday celebration in 1986.