Lilian Peel

Hi
I am trying to trace what happened to Lilian Peel. She married Edward Middleditch and lived in the UK. He went to war and when he returned she had left with their son at the time he was about 2 years old. The name I have been given is William. Not sure if she left to America or Australia. I would like to find William as I am married to his half brother who is turning 70 this month. If any one can assist me I will be so grateful. My email address: shirley.middleditch@gmail.com