In January 1754 Elizabeth Sisson approached Thomas Birch one of the trustees of the newly established British Museum, loaning him the 12 volume catalogue, but again nothing was to come of the sale during Elizabeth Sisson's lifetime. Finally, in 1762, John Stuart, 3rd Earl of Bute purchased the collection on behalf of King George III for the bargain price of £300 (a fraction of the cost of forming the collection). In that same year King George III donated the collection to the new British Museum at Montagu House, where they were originally known as the "King's pamphlets" and added to the Royal Library Collection. In 1973, the museum transferred the Thomason Tracts to the British Library where they continue to be housed.