Looking for a needle in a hay stack. I have a family history story where our ancestor Robert Graham born c1780 who was reported to be a member of the 90th Perthshire Volunteers and somehow related to the Duke of Montrose. Robert was apparently at a ball where royalty were in attendance and was in a discussion where he ended up throwing a glass of wine in the royal persons face, fled the ball and the county, ended up in Tavistock, changing his name to Green. He married a Clodye or Claudia Ann Cotton born 1787 Boyton, Cornwall and had 5 children. When Robert heard that his regiment were coming to Tavistock on manoeuvres, he fled Tavistock to Plymouth, where he became a navy diver. His wife Clodye told her daughter Ann the story that there were estates awaiting them one day. Ann always asked for more information, but her mother always told her, not now later. Sadly, the old woman died before she told the full story. I'm not concerned about the estates supposedly waiting, because they're probably gone to other family. I would just like to make the connection to the right family tree to this so-called Duke of Montrose for a couple of elderly cousins who are in their 90's. It would be the best birthday gifts I could give them, a full family tree. If anyone could help or advise on where else I could search, I'd be very grateful, as Green and Graham are such common names and very difficult to research. Thanks everyone for reading.