 The main sources of revenue for the town were now from agriculture, livestock and quarrying with the Purbeck Stone quarries being worked to provide stone for minor expansion and house-building.The first non-market shops also appeared around this period, moving Swindon steadily away from a purely barter driven economy, with Robert and Margaret Boxwell opening the first recorded grocer independent of the market on the High Street in 1705.This business lasted at least 50 years, records show at that time they were importing tea and sugar from London.