Urban District in Middlesex 1894-1926.
Incorporated as Municipal Borough of Twickenham in 1926.
Now forms part of London Borough of Richmond upon Thames.
Details of archives here [1] - held at Richmond upon Thames Local Studies Library.
An obituary of the Urban District/Municipal Borough engineer Frederick W Pearce, died 1928 here
An article on electric lighting in Twickenham (Journal of Gas Lighting, Water Supply, &c, 16 July 1912) here.