I am afraid from the provided link that I do not see either documentation that Ms. Trimbath was making such claims about herself -- in fact the wording of the DTCC web page carefully maneuvers around such direct claim -- or evidence that she is NOT an expert in areas of stocks and securities.  She certainly is an 7 year expert on the DTC and by reason the future incorporation of the DTC into the DTCC as well based upon your link.  
You offer no disputed facts to check! Just assertions (one libelous one at that) that are not supported by your single link.  You had a forum in this letter to the editor to back up your stated case and this is the best you have?

Ernest says:

 

Let's get you or any one associated with DTCC that can talk about this on the radio show. I'm emailing you now.