1851 census (2 years after Thomas Snr. died) has William with his wife and seven children living at 5 Market Place, Derby (although this could well be 5, Exeter Place, Derby - see 1861 census below). Previously (1841) Charles had been living at a less opulent Upper Brook St., Derby.
1861 Census has William, wife Ann and four children living at 5, Exeter Place, Derby, just across the River Derwent from the Market Place.
1871 Census-same address as 1861.
1881 Census - William and wife Ann had died three years previously (1878) and son Charles Tunaley is given as living at 3 Elm Street Derby, approximately a mile north of the Market Place.
Charles' occupation is given as blacksmith, indicating the dyeing business to have folded.
Son Henry is not mentioned in the 1881 or 1891 census records but reappears, married, in the 1891 census.