27.9.1788
In Godwin's 1796 list for 1788 (crossed out) and in 1794 version. GD website has a person record for him but the 1796 list entry is not coded to it.
John Hewlett DNB 1762-1844. The DNB states that he ran a school at Shackleford, Surrey. As he appeared in newspapers (e.g. Times 18.1.1800) as keeping a school in Shacklewell this looks like DNB's mistake rather than Godwin's. Shacklewell was near Hackney, Middlesex. The GD website event tag wrongly states reference unclear on 27.9.1788 T.C. goes to Shacklewell, when it is explained in John Hewlett's person record. The GD website transcribed Hewlet wrongly as Herolet 9.10.1798 at Joseph Johnson's
Amendments to Oxford DNB
JOHN HEWLETT 1762-1844
CURRENT TEXT "He kept a school at Shackleford, Surrey,"
SUGGESTED CHANGE <He kept a school at Shacklewell, Middlesex,>
NOTES His school was at Shacklewell, Middlesex (see Times 18.1.1800 and Wiiliam Godwin's diary 27.9.1788)