Reg Cundick and Danny Howell in the book The Inns And Taverns Of Warminster, published in November 1987, stated:
The Duke William
Halliday records the Duke Of Cumberland inn being in existence in 1710 and 1740. There is no mention of it in the 1801 Survey Of Warminster, so presumably it had closed before this time. Halliday, writing in about 1830, tells us the inn’s location was then Edward Hinton’s house at West End. Hinton’s large house is listed as Plot No.185 on the Inclosure Award Map, and can be identified today on the south side of Vicarage Street, opposite The Minster Stores grocery shop.
Daniell mentions an inn with the name Duke William but gives no location. This may have been the same inn, because William Augustus, one of the sons of George II, was Duke of Cumberland. He led the British Army to victory over the Jacobites at the Battle of Culloden in 1746. It seems likely that the Duke of Cumberland inn may have been known locally as the Duke William.