In 1889, with the formation of the County of London, administrative responsibility for 16 Surrey parishes was transferred from Surrey to new Metropolitan Boroughs. At the same time the Middlesex urban districts of Staines (comprising the parishes of Staines, Ashford, Laleham and Stanwell) and Sunbury (comprising the parishes of Sunbury, Littleton and Shepperton) were transferred to Surrey, and now form the Surrey borough of Spelthorne.
In 1965 the Greater London Council was formed and the metropolitan boroughs together with another 24 Surrey parishes were incorporated into the new London Boroughs.
Deptford St. Paul
Southwark, St John
Southwark, St Olave
Southwark, Christ Church
Southwark, St George
Southwark, St Saviour
The definitive guide to the relationship between Surrey Parishes, Metropolitan Boroughs and modern London Boroughs is:
Cliff Webb, My Ancestors were Londoners. How can I find out more about them?, Society of Genealogists, 1996.