Mrs vs ms for widow

Mrs. is correct. Hopefully she won't notice or be offended. It was an honest mistake.

What does she go as? My stepmother is s widow and goes by Ms.

I would ask. Two great aunts of ours still go by Mrs. Technically, Mrs. is correct, but some women prefer Ms.

I'd reach out and just say, "Hey Gma. I never thought of this before and am not sure if I addressed your STD correctly. What do you prefer?"

Just ask. We used Mrs. Grandma's Name because they both prefer it. Yes, Mrs Husband's Name is correct, but I'm more than happy to call them whatever they want!

I agree with asking. Maybe your parents know if you don't want to ask grandma. However I don't think it's that big of a deal personally. I would never get offended over something like that since both are correct.

I would not stress too much about what is already done, but I would call them and ask what they prefer before it is time to send the formal invitations.

Either one is fine

I don't think either are wrong but I always use Ms.

I wouldn't over think this. I doubt she's going to be offended one way or the other. Also maybe I read this wrong, but what is the point of asking what she prefers if the invitations are already addressed and done with? I'd just not worry about it.

If it's already done, don't stress it. If you're really worried you can give them a call and say "I hope we didn't offend you with how we addressed our invitations!" but they probably aren't upset.