The Mysterious Voodoo Queen, Marie Laveaux: A Study of Powerful Female Leadership in Nineteenth Century New Orleans (Studies in African American History and Culture)
Just like Geoffrey Chaucer always spelled his own name "Geffrey", it seems Marie Laveau and her family preferred the spelling "Laveaux." This really expensive book that I haven't read because I can't afford it, was written by a very devoted historian who was responsible for uncovering important records in the life of Laveau such as, for example, her birth certificate which had long been thought lost. It required getting special permission to look at the old hand-written church records of the late 18th and early 19th century.
Yes, I am recommending this without having read it, but any time someone puts effort into researching history and makes good discoveries it seems to me worth seeing their work, if it is possible to do so. The reviews on the piece are also favorable; and I always think people that devote themselves to history like that should be rewarded. If you can actually afford it, and have an interest in Marie Laveau, you should definitely check it out. (You can buy it from the Amazon new-and-used for only $98.)
Or you can just look over the Haunted New Orleans article that introduced me to the find.