Saw this on BBC4 yesterday, very good fictionalised drama docu based on Walter Tull, the first black commissioned officer in the British Army during WW1.:
Walter Tull was the first black outfield footballer in Britain. Born in Folkestone in 1888 he was of mixed parentage. His father was from Barbados and his mother was English. Sadly, both his parents died at an early age, so Walter and his Brother were brought up in an orphanage in East London. Walter’s brother Edward was adopted and went to live in Scotland with the Warnocks, where he late worked as a dentist in Aberdeen and Glasgow. Walter stayed behind in London.
While at the orphanage he enjoyed playing football and was an exceptional talent. He was playing for Clapton when in 1909 he was spotted by Tottenham Hotspur.
http://www.blackpresence.co.uk/Drupal/node/59
see it here - 60 minutes: