The web site of the State of Michigan shows only one licensed professional engineer with the last name of Davis and the initials "R.A.," and that person lives in the same zip code as yourself. So I will hazard a guess that person is yourself, and that therefore you are already a PE. I see also that Texas does not have a comity registration process, and that you will need to provide a complete registration package. So I understand the problem.
As to professional references, I would look for help from present and previous employers, present and previous co-workers, present and previous clients, vendors, manufacturer?s representatives, and contacts from industry-related social or professional groups (e.g., the IEEE).