Two short articles by Lafcadio Hearn about New Orleans Voodoo.
Hearn, a New Orleans native, also wrote extensive works about Japan,
available in the Shinto section.
Last of the Voudoos [ 1885 ]
New Orleans Superstitions [ 1886 ]
Here are two books relating to Haitian Voodoo (Vodun). They were written by an outsider to the religion who was ultimately unable to penetrate its inner mysteries; however both of these books has strengths as historical and ethnographic background on the topic: