Allan Cylinder

Allan Cylinder was a councilor who served as a witness for Avery Richman's murder trial in the United States. He was invited aboard Richman's special express train, the Silver Star, to participate in a retrial.

Name

 * His surname likely refers to the locomotive cylinder that powers a steam engine.
 * Coupled with Edgar Piston, his given name may be a reference to poet Edgar Allan Poe.