Kerr Stuart of Stoke on Trent were late into the locomotive manufacturing field but in their short existence made many fine locomotives for colonial use of which Joan was one. She was built in 1927 for a sugar cane company in Antigua, West Indies and after being withdrawn was brought back to Britain to enjoy further service on the W&L. At Llanfair, an extensive overhaul including rebuilding the cab preceded her entry into traffic here in 1977. Following this, Joan gave sterling service on the W&L until 1991 when she was withdrawn in need of extensive repairs. After her second overhaul here, Joan re-entered service in 2011 with a new boiler and other modifications intended to increase her haulage capacity.