Donna, I have just come across the following piece in The Argus of Saturday Jan 15th, 1921, and I"m confident this is your John Mylrea, especially given your belief that Wilfred went to South Africe. I also had another look at his wedding certificate and he is a John not a William at all. My mistake!

MYLREA -On the 10th January, at his residence, 119 Albert St, Windson, John, eldest son of late William and Mary Mylrea, Andreas, Isle of Man beloved husband of Ellen, beloved father of Francis, belove stepfather of Nellie and Fred, late of Ballarat, aged 67 years Ballarat Durban (S Africa), and Isle of Man (England papers pleaso copy).

Diana