Contact info of Native American Ancient Artifact Collectors

My father (an antique dealer for some time) has an ancient (and i do mean ancient) Native American sandal that many Native American collectors would surely die to have. It's probably thousands upon thousands of years old.. I want to get it carbon dated to be sure, but I need names and contact information of all the Native American collectors. Preferrably in the United States for ease of sale and acquisition later should it be sold. Looking for about 100 names of really wealthy collectors that have a history of buying very expensive Native American artifacts. Contact information must include, name, email, fax, phone, website (if available), and any historical purchases of note, or other information about them. Looking forward to your bids. However, please dont bid and then send me a PM with just a list of your work. I dont pay attention to blanket emails like that. I read the personal emails that look like they come from real people, not agencies, or freelance factories.... sorry.. that's just how i am Thanks