Trinidad
From Tardis Wiki, the free Doctor Who reference
Trinidad was a place on Earth.
Malcolm's parents were from Trinidad, but Malcolm himself was born in Britain. (PROSE: Time and Relative)
Lincoln Hall was born in Trinidad. (AUDIO: Intelligence for War)
Peter Moore was a second-generation Trinidadian. (PROSE: Invasion of the Cat-People)
Behind the scenes
Trinidad is an island in the Caribbean. Together with Tobago, it forms the nation Trinidad and Tobago.
T&T gained independence from the United Kingdom in 1962, less than a year before the events of Time and Relative. After this, they remained part of the Commonwealth, allowing for easier travel and migration to the UK than elsewhere.