By the late 40s/early 50s Albert Lines was living with a woman (still trying to confirm her name was Mary) and she brought a son with her whose last name was Morris. After the deaths of both Albert and his mother, he continued to live at 7 Coronation Road. I have a few more details about the son but don't want to post them in a public forum in case he is still living.
I hope this is your Albert F Lines, Pixrobin, as we have a good bit of information about this character one way or another
And, McSporran, are you buying credits for the 1939 register records on Findmypast? I was disappointed to find them so pricey.