Sir John Gonson (died 1765) was an English judge for nearly 50 years in the early 18th century, serving as a Justice of the Peace and Chairman of the Quarter Sessions for the City of Westminster.
[1][2] Gonson was a supporter of the Society for the Reformation of Manners, and was noted for his enthusiasm for raiding brothels and for passing harsh sentences.
Gonson appears in contemporary court reports and newspaper articles, but is best known for having been depicted twice in A Harlot's Progress, William Hogarth's series of paintings from 1731 and subsequent engravings from 1732.
The character of Moll is based on a real-life prostitute, Kate Hackabout, who was apprehended by Gonson in 1730 and sentenced to hard labour for keeping a disorderly house.
[3] Gonson appears again in plate 4, shown hanging from the gallows in graffiti, while Moll beats hemp in Bridewell Prison.