- “Cora is a guard's van. She isn't as big as Beatrice, and she hasn't a ticket window, but I like her best. She was my guard's van in the old days.”
- ―Peter Sam, The Little Old Engine
Cora was built by the Falcon Works for the Mid Sodor Railway, where she was a tool van, though she served as Stuart's guard van for a time. She was acquired by the Thin Controller in the sale following the closure of the MSR in 1947. She was used as a guard's van whenever Beatrice was unavailable, though she eventually returned to her original use after Millicent's arrival in 1955.
Skarloey took Cora to rescue Duncan after he got stuck in Rheneas Tunnel for doing "Rock n Roll". When Skarloey took Duncan home, Cora was left in a siding for the workmen to inspect the tunnel. When a documentary was made about the Skarloey Railway, Ada, Jane, Mabel and Cora had the honour of carrying the television equipment and cameras.
Duncan later took Cora to help repair one of Skarloey's coaches after it derailed.
Cora is painted periwinkle blue, with the letters "SR" painted on her sides in white.
- The Little Old Engine - Trucks! (cameo), Home at Last (does not speak) and Little Old Twins (cameo)
- Gallant Old Engine - Steam Roller (cameo) and Passengers and Polish (cameo)
- 1972 - The Railway Series: Surprise Packet (does not speak)
- 1987 - The Island of Sodor: Its People, History and Railways (mentioned)
- 2005 - Sodor: Reading Between the Lines (mentioned)
- With permission from Christopher Awdry, Cora was featured in the Corris Railway's newsletter, known as the "Corris-Pondent". Cora is depicted as a brake van who worked on the Corris Railway but moved to the Talyllyn Railway.
- Rev. W. Awdry's original model of her is presently on display at the Narrow Gauge Museum in Tywyn, Wales.