Hi Steve: Found this on the 1939 Register:
Lived at 8 Rhine Street, Bradford
John C Parker, DOB 13 Feb 1892, Corporation Watchman
Catherine Parker, DOB 23 Oct 1891
William Parker, DOB 24 Jan 1918, Railway Engine Coal Man
John Parker, DOB 11 Jan 1935
I did a search on Find My Past and John C...