Found her death entry and had a few credits left - it's a sad story I'm afraid.
Ada Gordon Bell aged 46 (bc.1905-6) wife of Peter Bell, Clerk (War Department), found drowned 2/1/1952 (Last seen alive January 1st. 1.30am and found 2/1/1952 at 1.30pm). Found on foreshore about 200 yards east of Gipsy Brae, Granton, Edinburgh. Informant was her widower husband, Peter Bell. Usual residence 9 West Pilton Avenue, Edinburgh.
Her parents are given as James Mackay, Coachman (deceased) and Ann nee Williams (deceased).
Her birth as Ada Gordon Mackay is registered in 1905 Canongate, Edinburgh - no more credits spare but as has been suggested already you'll need to purchase some credits for Scotlands People to view the certificate which should hopefully confirm her parents names as stated on her death certificate. Scottish birth certificates also show where/when parents married (if indeed they did).
Annette