Thomas Richardson Ellin (1861-1935) was the son of Thomas Skevington Ellin and Charlotte Richardson.  His father was a partner in Thomas Ellin, but had retired by 1871.  Thomas Jun. trained at the family firm and in 1886 began making novelty and picnic knives (Quality, January 1931).  He soon switched to engineers’ tools, especially wrenches – though continued to sell cutlery, such as putty, hacking, and stripping knives.  Apparently, he also marketed Bowies.  ‘FOOTPRINT’ and ‘DOMINO’ were the trademarks.  Footprint Works was based at Trafalgar Street and then Eyre Lane by the early 1890s, but in 1900 Ellin moved to a purpose-built factory at Hollis Croft.  During the First World War, Ellin acquired Crampton Bros (a clamp and vice manufacturer), which had been started in 1866 by brothers William Crampton (1843-1910) and Willoughby Crampton (1845-1897).  In 1921, the parent was incorporated as Thomas R. Ellin (Footprint Works) Ltd.  Thomas’ brother, William Reginald (1865-1938), was a partner.  T. R. Ellin was Master Cutler in 1925.  He lived at Endcliffe Holt, Fulwood Road, and died on 28 June 1935.  He was buried in Ecclesall, leaving £48,768.  In 1948, T. R. Ellin was acquired by the Jewitt family.  They took over the handle maker, Charles W. Bacon, in 1950.  Ellin’s was liquidated in 2009, but resurrected on a smaller scale as Footprint Sheffield Ltd at Admiral Works, Sedgley Road, Owlerton.