Should I invite my first wife and her family to my brother's memorial service?

You should let her know that he passed away and that there will be a memorial service. Give her the info for it so they can come if they want. There is nothing wrong with that.

I'm sorry about your loss. It is a very decent thing to inform your ex wife about your brother's memorial service. It is not about the two of you, but about honoring your brother. I hope you ex wife will attend.

Inform them of the death. Let them know of the memorial if they can attend. If not, that is okay too.

Sorry for your loss.

She won't be coming for you but out of respect for your brother's memory. There's nothing wrong with her being notified of his passing. She will make the decision to attend or not.

She would be coming out of respect for your family, which she was once a part of.

You should invite them.

You know I just don't know if I would tell me ex or not. I had a cousin he knew well pass away and he knew and he never showed up. But your ex may be diffrent and really care about people.

If she was friends with your family and attends, i do not see a problem. I am sorry about your brother.

Yes you should invite her, that's the right thing to do. Sorry about your brother.

Of course you should