sentences:  Retiring early from the Navy, having being Captain of The FLY 4, he succeeded his mother (Lady Isabella) in the large properties she had earlier inherited from her brother, DUNBAR JAMES DOUGLAS The 6th Earl of Selkirk in 1885.St Mary's Isle is noted in 'local histories' for the short visits of John Paul Jones and poet Robert Burns to the then Selkirk mansion house.Robert Burns is said to have spoken the "Selkirk Grace" whilst visiting Lord Daer at St Mary's Isle.