In Maryland neither one is necessary!
Wow! In Texas, you HAVE to have some form of ID. It can be your voter registration card, driver's license, or a untility bill showing your name and address. Once you are 'in the book', it is hard to get out of it. If you die, someone in your family has to swear to it to get you out. If you move into a new district, you have to vote where your name is in the book.