DBA for Trust Account?

I'm planning on going to Wells Fargo Bank to open up a trust account soon. I read in the Commercial Redemption Operating Secured manual that it's one of the best choices and it also mentioned that u should get a DBA just in case u need it but some people disagree because the trust is private. my question is, since I'm in Detroit, Michigan, and I'm opening the account with Wells Fargo, do I need to get a DBA or will I be able to open the account without it?