National Portrait Gallery
We Never Sleep: Fifty Years of Pinkerton Men
July 31, 1981 – January 3, 1982
The saga of Allan Pinkerton's rise from an incendiary labor agitator in Scotland to one of America's most prominent law and order advocates is the subject of a small exhibit. On display are portraits, mug shots, the diary and correspondence of a glamorous Confederate agent, and the Pinkerton gold watch inscribed with the all-seeing eye and motto "We Never Sleep."
