Hi again,
Did Malcolm name the Donaldsons as his parents on his own marriage Cert and are they recorded as parents on his death cert?
Just wondering if he knew his original surname? Could he have been another family member's son who the Donaldsons took on as their own?
Have you looked at the names of his own children for a clue - a middle name perhaps relating to his previous surname?
If he was born after 1855 their should be a certificate. But I know from experience how hard that is going to be to track down. I have a ggg- grandfather who was obviously born illegitmate probably in Glasgow circa 1855-1857. He is on the 1861 with his paternal grandparents in Ayrshire and using their surname -no sign of parents (his father is mining in Australia)- and I have yet to trace his birth cert as he must have been registered with his mother's name. On his marriage he names his mother as
Jane Smith - probably a made up name- and hard to research.
Malcolm may not even have been his first name. Was he christened , by the way? Maybe a christening record could help?
Sorry for all the questions. Just posting my thoughts on the keyboard

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And I need to go out in 15 mins....
Hope you solve your mystery
Looby
