I admit, that always confuses me.
I tend to think of Jefferson Republican-Democrats onward as Democrats...at some point, they stopped being the Republican-Democrats and became the Democrats.
Was that in 1830 or 1850, or some other time? Do you know?
I’m sorry, I do not know. There’s something about “Whigs” in there, too, but I have never had any idea what that was about. Sorry! “:o/
The hyphenated name may have been dropped by Jackson’s time but certainly after Jackson, they were the Democrats party.