Speculation aside...I have searched for other spectators, police, railroad workers ..around those tracks that would corroborate the passing of the freight train and location of White----such information is apparently non-existent.
The movement of a train overhead right at the time of the shots shoulda coulda woulda have grabbed someone else's memory.Then why do it?
Bowers appears to confirm that White was there:
Mr. BALL. Did you see anyone standing on the triple underpass?
Mr. BOWERS.
On the triple underpass, there were two policemen. One facing each direction, both east and west. There was one railroad employee, a signal man there with the Union Terminal Co., and two welders that worked for the Fort Worth Welding firm, and there was also a laborer’s assistant furnished by the railroad to these welders.
Mr. BALL. You saw those before the President came by, you saw those people? Mr. BOWERS. Yes; they were there before and after.
Mr. BALL. And were they standing on the triple underpass?
Mr. BOWERS.
Yes; they were standing on top of it facing towards Houston
Street, all except, of course, the one policeman on the west side.