Elwyn, Many thanks for the swift reply to my query, I should have added in the initial query that William Macdonald was recorded in the Scotland Census of 1871 as a 'Jeweler' living with his wife, Isabella,(Wallace) in the back of his shop at 32 Clerk Street, Edinburgh, and again on his 2nd Marriage in 1891 to Hannah Wallace (1st wife's neice) as a 'Jeweler'.at 4 Grayfriars Place, Edinburgh, and his 3rd Marriage certificate to Joan Catherine Gifford as a 'Jeweler'. I cannot locate a Marriage cert on Scotland's People website for William and Isabella's Marriage in 1870, but I have uncovered a Marriage between a William McDonald and Isabella Wallace on 8th May at 8 Spittal St., Edinburgh, but the parents don't tie in to Family fokelore regarding William and Isabella and his other Marriages. (This has been temporarily shelved as a possible 'red-herring'.)
Most of the information I have regarding William and his parents has been derived from a small scrap of paper found in my late mother-in-laws papers after her death. She always had doubts on the 'Irish Connection' and family fokelore has always spoken of Williams apparent wealth upon his 'arrival' in Scotland and where his wealth came from (His father Michael was recorded on Williams Marriage cert in 1891 as a 'General Merchant' - deceased.) The dates fo his paprents deaths are approx and were BEFORE 1883.
I will investigate your 'hints' on the Irish death records so see what information I can derive from the data, but I'm not hopeful as others have already been down this route and uncovered very little hard evidence as to William's ancestry.
I have a complete set of facts for William after 1870 with certificates etc. on the 'COCHRANE Family Tree' on the Ancestry website.
Again Many thanks for your reply - Hopefully there may be other kind souls out there who can throw some light on my quest for definative information.
Gordon T. Stevens