That is interesting and ties in with what I know about the Drummonds the painters. I had found this on a siet dealing with the life of Samuel Drummond ARA:
"The portrait artist and history painter Samuel Drummond was born in London on 25th December 1766. Samuel Drummond was baptised in London at St. Luke's Church, Old, Street, Finsbury on 18th January 1767. Samuel's parents were Jane Bicknell and James Drummond, a London baker. James Drummond probably came from a Scottish family. According to the art historian James Grieg, Samuel's father, James Drummond, had been a supporter of Charles Edward Stuart, the Jacobite claimant to the British throne. In a summary of Samuel Drummond's life and career, Greig states that "his father had to leave England for fighting on the side of 'bonnie Prince Charlie'." Given that Charles Edward Stuart was defeated at Culloden in 1746, James Drummond's exile must have taken place when he was in his early thirties. This would explain why James Drummond (born 1715, London) did not marry Jane Bicknell (1746-1770) until 1766, when he was fifty years of age."