Clapham, a SW. suburb of London, in the county of Surrey, 4 m. from St. Paul's, and inhabited by a well-to-do middle-class community, originally of evangelical principles, and characterised as the Clapham Set.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Clan-na-Gael * Clapperton, Captain Hugh