 Later one of Newcomen's business contacts in London, Edward Wallin, was another Baptist minister who had connections with the well-known Doctor John Gill of Horsleydown, Southwark.Newcomen's connection with the Baptist church at Bromsgrove materially aided the spread of his steam engine, as the engineers Jonathan Hornblower (both father and son) were involved in the same church.Newcomen's great achievement was his steam engine, developed around 1712; combining the ideas of Thomas Savery and Denis Papin, he created a steam engine for the purpose of lifting water out of a tin mine.