Bill Bunce apparently did nine of these, so there are still 3 to come to have a complete collection on CB+.
He has confined his art work to trains and books about trains.
Bill Bunce
(27 August 1903 - 29 May 2001, USA)
https://www.lambiek.net/artists/b/bunce_bill.htm
[Bill Bunce was an American illustrator, known for drawing a series of nine educational comic books for the Association of American Railroads (1955-1960). He was most likely the same person as William H. Bunce, the author of several educational fiction books about American history and archeology.]
[No definitive information is available about William H. Bunce's further life, except that he passed away on 29 May 2001. During the 1950s and 1960s there was also a William Bunce active as graphic designer and art director in the entertainment industry. Also referred to as "Bill Bunce", this artist designed record sleeves for RCA Camden, Urania Records and Davis Records in the second half of the 1950s, and title cards for CBS television in the early 1960s. Wether this was the same William/Bill Bunce is unknown.]
cheers
Link to the book:
Railroads Deliver The Goods