Dean Street was crafted in the 1680s and was at first settled by French immigrants. Joseph Conrad made use of Soho as the home for The Secret Agent, a French immigrant who ran a pornography shop. Thomas De Quincey lived in the avenue soon after running away from Manchester Grammar School in 1802. Josiah Wedgwood ran his major pottery warehouse and showrooms at Nos. Their most important function is to provide milk to a establishing infant.