Iโm watching Splash (1984) which is a romcom about a guy who falls in love with a mermaid, and when she chooses a human name she chooses Madison and guy says โthatโs not a real name, but alrightโ which seems to imply that Madison was not a name until at least the 80โs and all girls named Madison are actually named after the mermaid. thought you should know
Holy shit. OP is right
It existed as a men's name before, but not as a woman's name.