22.8.1796 Mr Christall at Hayes' / 13.4.1805 Christal at Thos Hope's / 29.4.1805 Cristal at exhibition / 13.2.1809 Cristal at British Gallery
None of these are coded to a person record in GD website but they are probably all Joshua Cristall DNB 1768-1847. The last three are all in the company of Dawe and two of them at art exhibitions. The first one might have referred to Cristall's father or elder brother but maybe the mr was used in an attempt to distinguish him from his sister Anne, for whom Godwin possibly used plain Cristal (or Christal) elsewhere