I've even tried English records, even though he was a Scot (or had certainly lived there long enough to have a Scottish accent), and Ancestry Ireland.
He's the man my Great Grandmother, Margaret MacDonald m.s. Girtridge/Girtrig/Girtrigg/Gurtrigg etc..., etc..., etc... married a few years after her 1st died at sea, (can't find MC, so don't know when this 2nd marriage happened, but it had to have been after 1901).
He was still alive during my lifetime, so no DC online to get his parents' names.
Any suggestions?