- SALES.... SERVICE.... SPARE PARTS.... GUNNEDAH BRANCH TAMWORTH BRANCH QUIRINDI BRANCH GILGANDRA BRANCH (Millers Machinery) Mr William (Bill) Cornish founded Cornishs in 1935. His great success in the Tamworth area led to expansion into surrounding areas, namely Gunnedah, Quirindi, Wauchope and Walcha. Unfortunately after the death of Mr Cornish in 1975, the impact of his death and ensuing hard ...www.cornishs.com.au