Description: Original black and white photographic negative taken by Dallas Times Herald photographer William Allen as police and detectives guard the front entrance to the Texas School Book Depository building within 50 minutes of the assassination. Shortly after this picture was taken, Dallas Police officer M. N. McDonald, right, raced to Oak Cliff to investigate when he heard on the police radio that an officer had been shot there.
Date: November 22, 1963
Creator: Allen, William
Item Type: Photograph
Partner: The Sixth Floor Museum at Dealey Plaza