I also do genealogy. We ( my sisters and I) have traced some ancestors on my mother's side to 1600.
A great great grandfather was the 3rd Provost of Dunoon, Argyll. Another great great great grandfather was the Town Treasurer of Crail, Fife.
A great great uncle was shot during the Christmas Truce of World War One.
There's a reasonably well known poet in my ancestry, but I can't remember his name at the moment.
We've discovered that several ancestors were married more than once and had families from both marriages.
According to my mum, we have a family member who was involved with the engineering works that brought water from Loch Katrine to Glasgow.
But I don't know of anything really outstanding.