On the afternoon of July 13, 1909, Patrolman Edward Shay was working the rail yard at 16th Street and Kentucky Street in San Francisco.  While searching an outbound train for ‘boxcar burglars,’ Shay stepped back a few feet and was struck by an oncoming string of cars being pushed by a switch engine.  Patrolman Shay was 45 years old.  The engineer of the train that struck and killed Shay was arrested for manslaughter.