Richard Marshall and Glenn Sweeting at Work, by Farrar, Richard, 1976, Smithsonian Archives - History Div, Shortly before its opening in 1976, Richard Marshall (left), National Air and Space Museum Exhibits Specialist, and Charles "Glenn" Sweeting, Assistant Curator of Aeronautics, adjust mannequins to fit into historic uniforms for exhibition in the National Air and Space Museum . Since the uniforms on display in the museum are historically accurate, they cannot be altered to fit the mannequins, so the mannequins are altered to fit the uniforms..