Brooklyn was a borough of New York City.
Parts of Brooklyn formed a grid of numbered streets and numbered avenues. Windsor Terrace and Borough Park were situated in Brooklyn. 46th Street passed through Sunset Park. (COMIC: Revolutions of Terror)
The Doctor spent at least a fortnight in Brooklyn in 1925 tracking down Studs Maloney. (PROSE: Island of Death)
Max Vilmio's moll Maggie was from Brooklyn. (PROSE: The Ghosts of N-Space)
The Second Doctor's smell reminded Nanci Cruz of her grandmother's apartment in Brooklyn. (PROSE: Mother's Little Helper)
Gabby Gonzalez, a companion of the Tenth Doctor, was from Sunset Park in Brooklyn. (COMIC: Revolutions of Terror)