I do wonder why we are finding nothing in Scotland

There is a tree on Ancestry with a GSF, (born on May 2 1911, in Seaham, Easington, Durham, England) , possible marriage(age 39) Sunderland 1951(from FreeBMD) , and a death in Lancashire England(added - April 11 2002, at age 90 in Burnley and Bundle, Lancashire, England).
Might be worth a look as we don't seem to be finding anything in Scotland

ev
Added -
Look near the bottom of the page-
http://www.rootschat.com/links/01q8w/Added-
If she was married by 1955 , I wonder how the lawyer managed to track her to Dumfries(or a misheard Durham) ?
Perhaps there was something in the adoption papers or those involved were still in contact ?