"Joe Flannery, the 'Secret Beatle,' Dies "

... "So that became my job and Brian handled the contacts and business side of things. We would meet up every few days to share notes. We had other bands on our books too, such as Gerry and the Pacemakers, Cilla [Black], Beryl Marsden and Billy J Kramer."

https://ultimateclassicrock.com/joe-flannery-secret-beatle-dies/