The name "Louisa" was name of "Louisa" Fork of River in Pike Co, KY. Somehow it got changed to "Louvisa" by some map maker, and after that many people used "Louvisa" as a name. To the embarrassment of many people from that area. It is often very hard to know if they intended Louisa, or Louvisa. Some of my kin were called "Visy" or "Visa" for short, and I assume their name was actually Louvisa.