"That on the application of the owners, Messrs Wm Ewart and Sons four new streets on their property situate of Blackstaff Road be named Coolbeg Street, Coolderry Street, Coolfin Street, and Coolmore Street". (Improvement Committee, 27th January 1892).
There used to be a well-known ballad, Willie Leonard, or the “Lake of Coolfin" of which the first verse is: "To the Lake of Coolfin the companions soon came, And the first man they met was the keeper of game: 'Turn back Willie Leonard, return back again, There is deep and false water in the Lake of Coolfin." (John J. Marshall)