Green’s Dictionary of Slang

Apostle’s Grove n.

[pun; the area was well known for its up-market courtesans and ‘kept women’]

St John’s Wood, London NW8.

[UK]Hotten Sl. Dict.
[UK]Barrère & Leland Dict. of Sl., Jargon and Cant.
[UK]Farmer & Henley Sl. and Its Analogues.