Hi Stephen,
I work at the Wheatsheaf Hall and for the past few months myself and another colleague have been researching W S Caine (1842-1903) and the history of this building.
W S Caine brought a villa Called Lemon Cottage which stood here before he built the Wheatsheaf hall and used it for his church services for the London Congregation Union.
We would love to speak to someone to obtain/share more information.
Hope to hear form you soon or anyone else who may be interested.
Kind regards,
Michael McGrath