Jack and Eddie were brothers to each other and cousins to Frank.
Tony and John are brothers. Their dad, Tony Myler Senior, is Frank's brother.
Steven is John's son.
Danny is some relative of that family. His brother Vinny played for Bradford but he's not a close relative of Paul, so far as I know.
Not sure about Rob Myler, Richard's step-dad. Richard Myler is great-nephew to Doug Laughton who, in turn, is descended from Paddy Douglas and Jerry Laughton, the 1930 Wembley halfbacks.
