4073 Caerphilly Castle. Built 1923, Swindow. Preserved: STEAM, Swindon. Status: Static Display.
4079 Pendennis Castle. Built 1924, Swindon. Preserved: Didcot Railway Centre. Status: Operational.
5029 Nunney Castle. Built 1934, Swindon. Preserved: LSL, Crewe. Status: Operational.
5043 Earl of Mount Edgcumbe / Barbury Castle. Built 1936, Swindon. Preserved: Tyseley Locomotive Works. Status: Operational.
5051 Earl Bathurst / Drysllwyn Castle. Built 1936, Swindon. Preserved: Didcot Railway Centre. Status: Static Display.
5080 Defiant / Ogmore Castle. Built 1939, Swindon. Preserved; Tyseley Locomotive Works. Status: Under Overhaul.
7027 Thornbury Castle. Built 1949, Swindon. Future uncertain, possibly use with the 4709 new build.
7029 Clun Castle. Built 1950, Swindon. Preserved: Tyseley Locomotve Works. Status: Operational.a