Okay so! Ill put here the information I have uncovered about this clue:
This is a painting of Mary Hayley's daughter, Dinah Haley. Dinah is also known as "Lady Baker". Mary Hayley is responsible for one of the ships that was present at the Boston Tea Party. Mary's husband Samuel Storke Jr would become leader of one of the major trade firms that would trade with New England and the British West Indies.
Names of Hayley's ships were: Abigail, The America, and the Egmont. Hayley would end up forming the British Southern Whale Fishery. Little is known about Dinah, the one pictured in the painting, but there were issues between Mary and Dinah. They had arguments over a will, and who would inherit what. Quoting wikipedia "In 1783, Dinah had married a captain of the Devon Militia, Robert Baker, whom [Mary] Hayley considered a fortune-hunter because he was deeply in debt. To escape his creditors, he had taken Dinah to Saint-Omer, France, and filed suit to collect Dinah's inheritance from Hayley. After arriving in Boston and hearing of the impending birth of her first grand child, Hayley sent money to the couple and a conciliatory note"
There's obviously a lot more, but that stuff does have a lot to unpack. Possibly "Abigail" or "Egmont" means something? That or information about the whole will issue as well as the man that Dinah ended up marrying. As well, Saint-Omer, France could mean something too.