Holebrook-McCarthy connection

My grandmother was Eliza (or Elizabeth) Holebrook born 1903 Liverpool, England.She married William McCarthy probably around 1920. Eliza's parent were Henry and Mary Holebrook nee Winson, whom I have found on the 1901 census living in Liverpool.I know Eliza had a large number of siblings who were Georgina, George, Henry, Mary, Margaret and James. There may in fact have been more. I know a little about these siblings and am really interested in finding out more about any others there may be and in William McCarthy who had a sister Louise. Will also post on McCarthy board.

Thanks