I know I shouldn't have waited so long, but my son's name was changed 5 years ago. Will this be an issue in verifying his identity?
No, there will not be an issue as long as you have an identity document with your son's prior name on it.
Can you tell me on what documents do I need to submit as a proof of identity in getting my new card?
Yes, we will accept a US drivers license or a state-issued non-driver identification card.