 Later it changed its name to Poly Travel, before being acquired in 1962 along with the firm Sir Henry Lunn Ltd. A few years later, the two firms were merged and eventually rebranded as Lunn Poly (and later on as Thomson Holidays).The PTA was one of a number of British travel agencies formed in the latter part of the 19th century, following on from the pioneering efforts of Thomas Cook.Members of the Polytechnic had taken holidays at the homes of its founder, Quintin Hogg (1845-1903), including Holly Hill in Hampshire, but increasing numbers meant that this became impractical.