Hoodoo Mag
In the mid 1800s, a woman named Julia Henderson was killed from black cholera. This woman was a prostitute in New Orleans, Louisiana, and her friends charged a Voodoo practitioner by the name of Hoodoo Mag as responsible for Henderson’s death. They claimed that she killed her through supernatural means. The Daily Crescent came out with an article soon after, referring to Hoodoo Mag as an evil witch who belonged to Mr. Marpolise, and she was known to Negroes in New Orleans as Hoodoo Mag because of her high priestess status within the Voodoo religion. They believed her to contain bottles of charms and curses within her possession. No one else heard of Hoodoo Mag after these charges were brought up against her. The argument was so ridiculous that her master probably just let her go somewhere else.
(Source: Tallant, Robert. Voodoo in New Orleans. 1994)