] Does that spark any ideas about JA's intentions or political commentaries in her books? Or can you tell me anything about any particular administrations' actions that seem to connect with the novels?

As the perpetrator of the bizarre theory that Darcy is based on Pitt, I think the timing of the writing of "First Impressions" seems right. Also came across this in Derek Jarrett's "Pitt the Younger"

"..laws which cut the duty on port and increased that on French wines dated from the days of the Glorious Revolution, when Portugal had been our ally against a King of France who seemed determined to overthrow parliamentary rule in England and restore the Stuarts. A man's drink had therefore become something of an indication of his politics: loyal Whig adherents of the House of Hanover raised their port glasses to the health of King George; while Tories were suspected of drinking surreptitiously to their "king across the water" in French claret".

JA's port drinker - good old Uncle Phillips
JA's claret drinker, indolent, stay-at-home, Crawford-relation, Dr. Grant

Pitt drank port wine as first recommended by a doctor when he was aged 14 for his health! I have always thought it slightly strange that JA should choose to have Darcy offer Lizzy a glass of wine when he believes her unwell.

Pitt also brought in a range of taxes on luxury goods "Taxes on hats and perfumes were followed by taxes on horses, playing-cards, hair-powder...(and)...sporting dogs" So when a little Lucas says "If I were as rich as Mr Darcy.......I should not care how proud I was. I would keep a pack of foxhounds, and drink a bottle of wine every day." JA is making two Pitt/political references either deliberately or inadvertently.