[N&W] Coal on the Powhatan Arrow??

[nw-mailing-list at nwhs.org]

In the January Issue of Trains, pg 49, column 1, Don Phillips says ..."In 
the last days of N&W passenger trains, the eastbound Pocahontas or the 
Powhatan Arrow would occasionally roll by with a single loaded hopper car 
on the rear.
1- Is it True?
2- If so how common was this?

Mason Cooper