Thank you shanks! Yup! It's Heyer for me! She wrote one about a gal brought up by her father in Africa and very much a liberated woman....wish I could remember the name it was a nifty story.
I heard that some Brit historians had tried to find errors in Heyer stories and came to the conclusion she either had done amazing research, had a stock of newspapers from the Regency era or was very old!
While we are at it -- what were the "macaroni?" as in
"Put a feather in his hat and called it Macaroni? fromYankee Doodle Dandy.