Railroad Workers On & Behind Triple Overpass: Everyone saw the Smoke on the Knoll under the Trees

Ignored by Warren Coverup, in many cases not noted by FBI reports, which is what the Warren Commission were working from.
Witnesses:
-James Lee Simmons
-Richard C. Dodd
-"Sam H." Holland or "SM" Holland (Supervisor)
-Walter Winborn
-Thomas Murphy (mail foreman)
-Austin Miller
-Reporter Ed Johnson
^^All saw the smoke
-Royce Skelton (heard 4 shots, 2 hit pavement)
-Frank E, Reilly (3 shots from trees
#JFK Assassination
-Cheryl McKinnon (JOUR student):
Saw 3 shots she felt came from behind her, (on knoll), turned around and saw puffs of smoke, was captured in NBC Cameraman Dave Wiegman's film, which also captured puffs of smoke under the trees.
[Bill Newman one of the 1st knoll witnesses heard 2 shots from the rear of Limo/TSBD direction, 1 shots sailing over him from the knoll]
-worker JC Price:
Heard shots on the area of the knoll or lot from way across the bridge, saw a man running behind fence