Tribes Served Santee Sioux Nation, Ponca Tribe of Nebraska, Yankton Sioux Tribe of South Dakota. Our Staff Jolene One Star Fiduciary Trust Officer Cell: 605-939-9254 Fax: 402-857-2430 Elizabeth Namminga Trust Accounts Administrator Cell: 605-384-5576 Debra Castillo Accounting Technician Cell: 505-366-1326 Office Location This is a virtual office. Mailing Address Bureau of Trust Funds Administration Attn: Santee Field Office P.O. Box 26928 Albuquerque, NM 87125 Unclaimed Money BTFA currently holds $80 million in trust for thousands of beneficiaries with no known address. Search our records to see if your name, or the name of someone you know, is on the list.