The largest business in Ayr for many decades was a foundry. In 1849, the John Watson Manufacturing Company (later Ayr Machinery Works) was already making threshing, mowing, reaping and other farm implements. By then, the population was 700 and a newspaper and library were operating. The town-hall was built in 1850. 1850 A large furniture factory also opened at about the same time. There were also five flour mills in the three communities that later formed Ayr, a very large sawmill and a woolen mill by then. Watson's company was very successful, shipping agricultural implements across the country by 1864. By 1850, a good road to Galt had been built and a railway had reached Galt, some distance from Ayr. During that time, goods for export were taken by ox carts to the train station at Paris, Ontario. The town hall was built in 1850 and a fire department was started the same year.