William Wyke Smith was a solicitor from 1831. He became the partner of his father at 16 Southampton Street, Bloomsbury.
He worked as a Solicitor for the Metropolitan Commission of Sewers and to the Metropolitan Board of Works 1861-1878. Thus he was involved in the building of JW's White House in Tite Street.
The Times, Tuesday, 17 September 1878, p. 10; Boase, Frederic, Modern English biography: containing many thousand concise memoirs of persons who have died during the years 1851-1900 ... Truro, 1892-1921.