And he hopes his labours of love will help bring the pride back into Welsh history."All my books have been about the culture and heritage of Wales, because it isn't taught in schools and I don't think politicians are interested in it.' He says.
'If we don't know our history, how are we supposed to attract tourists?
His list includes the obvious, such as Shirley Bassey and Catherine Zeta Jones, alongside the more surprising, such as Kylie Minogue, and the obscure, such as Princess Nest, and Helen of Wales.
Described by Mr Breverton as a 'pop princess', Kylie's Welsh connections come via her mother, Carol Jones, who emigrated to Australia from Maesteg as a youngster in 1955, and married Ron Minogue.
Eighteen months ago, her son was christened Dylan and her fledgling production company is called Milkwood. First, those less well-known but obviously Welsh, including, for example major creative talents like Gwen John and Jean Rhys.