I found my Great Grandfather's memoirs, so I have a lot more information. It turns out his name was John Myles Escott Worth. Born in Bristol, England on April 21st 1890. He was named after a Doctor Myles who was his Godfather. One of his cousins, Arthur Peck, was also leaving for Australia and they decided on Western Australia, as Arthur had some of his mothers' relatives there.
If this sounds familiar please email me, or post a message on this board. I can give you more information.