The firm was operated by Henry George Mander (1877-1953).  He was born at Chesterfield, the son of Henry John Mander (a baker and confectioner) and his wife, Flora Maria.   Henry George became a pattern maker in Sheffield (which was his stated occupation when he married Getrude Annie Haynes in 1901).   Manders & Dewhurst was listed in 1919 as a machine tool makers at Well Lane.  This was presumably the forerunner of Manders Tool Co, Well Lane, which was listed in 1925 as a stainless steel specialist.   Henry’s views on the hardening, tempering, and polishing of stainless steel – especially the working up of stainless table knives – were expounded in The Sheffield Daily Telegraph, 3 May 1924.   The Hawley Trust Collection has a ‘Firth Stainless’ table knife marked ‘Henry Mander’, with a fish hook mark.  Whether this was a trial piece, or Mander marketed his own branded stainless table knives is unknown.  In the Register of England & Wales(1939), Henry was enumerated as a ‘Master engineer.  Stainless steel laboratory utensils’.  During the Second World War, Manders made butchers’ hooks, gambrels, and household fittings.  Henry George Mander, of Cobnar Road, died on 6 April 1953, aged 75.   He left £4,479.   Mander’s Tool Co continued to trade as precision engineers at Gilpin Lane.  It became a limited company in the early 1970s, but had apparently ceased business by the following decade.