The names which were discovered via his agent, Rochelle Stevens & Co, link into the several stories that Trueman wrote for the Sixth, Seventh and Jack and the Pack Series'.
Considered as one of the very best episodes from the Sixth Season, Percy's Chocolate Crunch recieved the early identity of Puff Puff Pastry. In the story itself, the term pastry is never mentioned.
Serving as the introductory script for Fergus the Traction Engine, Bill, Ben and Fergus initially dropped the then newcomer's name from the title and was formally called, Bill and Ben.
Also taking responsibility to establish a fresh face, Nelson the Ballast Tractor's proper first, Percy Helps Out carried the drafted, Nelson Gets Carried Away.
Another creation, No Dozer is an Island appears to relate to a tale about Byron the Bulldozer. While it is not believed to have become A Happy Day for Percy, it is strongly indicated that the above subject was axed.
Thanks to SteamTeam for the alert.