Almack's was the name of a number of establishments and social clubs in London between the 18th and 20th centuries. Two of the social clubs would go on to fame as Brooks's and Boodle's. Almack's most famous establishment was based in assembly rooms on King Street, St James's, and was one of a limited number of upper-class mixed-sex public social venues in the British capital in an era when the most important venues for the hectic social season were the grand houses of the aristocracy. The site of the club, Almack's Assembly Rooms or (from 1781) Willis's Rooms, has become retrospectively interchangeable with the club, though for much of the club's lifetime, the rooms offered a variety of other entertainments with no connection to the club. William Almack The history of Almack's begins with its founder William Almack (the elder). One popular theory, circulated since 1811, supposes him to have been Scottish, his real name 'M'Caul', and that he had changed it because he found that in England a Scots name prejudiced his business. In fact, Almack appears to have been of Yorkshire origin, and the theory that this was an assumed name is undoubtedly false. In the will of his brother John Almack (died 1762) there is a legacy to his married sister, Ann Tebb, who lived at Sand Hutton in the parish of Thirsk, Yorkshire; and William Almack later bequeathed an annuity of twenty pounds to his niece Ann Tebb. The parish registers of Thirsk show that the Almack family had been established there since 1629. However, William Almack's wife, Elizabeth Cullen, was Scottish, and Almack himself may have met her whilst they were both in the service of the Duke of Hamilton, Almack as valet to the Duke and Elizabeth as waiting-maid to the Duchess. These Scottish associations may have led to the presumption that Almack himself was a Scot. From 1754 to 1759 William Almack kept a licensed coffee house in Curzon Street, open to all comers. On 7 September 1759 he obtained a licence 'to keep a common Alehouse or Victualling-house' at No. 49 Pall Mall and the rate books confirm that this tavern, which stood on the north side of Pall Mall, was opened by Almack in the latter part of 1759. Between September 1759 and January 1762 this establishment appears to have been an ordinary licensed house open to all comers. A letter