[8] After retiring as a player, he became a manager and took charge of the Danish national team, whom he led through the football tournament of the 1908 Olympics in London.

Early 1911 Oscar Cox, co-founder of recently established Fluminense FC of Rio de Janeiro, on a visit in London, hired Williams to coach his club.

[9] The man who "knows all the secrets and means of the violent sport," arrived on 16 March 1911 in Rio aboard the boat Oropesa, becoming the first ever professional football coach in Brazil – Fluminense itself had been managed by a Ground Committee up to this point.

His younger sister Ruth Ellen Williams married [13] Joseph Smith, the son of [also named] Joseph Smith - of the Royal Woolwich Arsenal Dial Square Workshop, cited in the "Founding Fathers" [section] of 'Arsenal 125 Years in the Making: The official illustrated history 1886-2011' ,[14] as unsuccessfully attempting to negotiate with the local cricket club for use of its pitch for Dial Square workshop's nascent works' football team.

Edith remarried in 1928 [18] After his retirement, Williams remained in Brazil for the remainder of his life and died on 29 July 1952 in Rio de Janeiro, aged 78.

After being spotted by Brazilian football agents while his local team Stamford AFC were on tour in the country, he signed for Sorriso EC, a club playing in the state league of Mato Grosso, where he debuted in November 2009.

Burkett's autobiography of his football career, with his time there and his family's personal history of Charlie Williams was documented in "The Boy In Brazil" [19] which was The Independent on Sunday 'Sports Book of The Week'