Johnny Rogan is an Irish/English author who first emerged in the late 70s with writings on West Coast American music. Rogan was born and spent his early childhood in the Pimlico area of London. His parents emigrated to London from Waterford (Ireland) in the 1930s. He is related to the actor John Rogan. His first book "Timeless Flight", an acclaimed biography of The Byrds was published when he was still a student at Oxford's Lady Margaret Hall. Wikipedia
The definitive Wikipedia entry for Johnny Rogan. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Johnny_Rogan