Thanks for your help.
It is her surname that is Alderman
I do not think she married. I checked marriage record up to 1950 and found 3 possibilites.
I sent for them one at a time with a reference check of her fathers name,and all are now back and none are her.
I checked for a death up to 1970 and did not find one that matched. It looks like i might have to re-check them in case i missed her.