Hi
There are a couple of trees on Ancestry ,did Arthur, Winifred and family go to Australia?
There is a possible entry for them in the passenger lists 1952 which gives address Newcastle under Lyne.
Some trees on Ancestry.co.uk are not always correct of course, and should nt be taken so without proper proof , but there is a birth Sep 1917 Ashbourne for an Arthur R (on actual image looks like H) Walker mmn. Finney which may tie in with the trees.
As Crisane suggests , if you know any of Arthurs siblings ,you could check on
www.freebmd.org.uk to see if they share a mothers maiden name.
Best wishes
Cathy