Dear Hugh; This is all I have; See Dave Bright website; csa-railroads
Google in on Site Search "Rail Road Accidents" and check the date.

NP, RD 9/18C/1861

From the Richmond Daily Dispatch

September 18, 1861

Sad accident
The Holly Springs (Miss.) Herald of the 30th ult., says:
A melancholy casualty, by which a brave soldier lost his life, occurred at Lamar Station, on the {Mississippi} Central Road, on last Sunday morning. The trains which passed the depot at Holly Springs, about eight o'clock, had a large number of Louisiana troops on board, destined, we understand, for Virginia. Arriving at Lamar, where the Northern and Southern trains pass each other, the soldiers left the cars and walked about the depot, until the whistle sounded for them to get aboard. While the cars were moving, one poor fellow tried to jump on the platform, but failed. He fell between the cars and was instantly killed. The name of the unfortunate man was Wm. Lewis. He was a member of the 12th Louisiana Regiment.