E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Gothamites (3 syl.).
American cockneys. New York is called satirically Gotham.
1
Such things as would strike a stranger in our beloved Gotham, and places to which our regular Gothamites (American cockneys) are wont to repair.Frasers Magazine: Sketches of American Society.