Q&A: Guest List: Invite Deceased Parent’s Widow to Wedding?
My daughter is getting married in two months. Her father is deceased. Do I send a wedding invitation to his wife? I've raised the bride for 15 years with little contact with her father and his wife.
The fact that you are considering inviting her means you probably should invite her. It certainly won't hurt to send an invitation. Even if she declines, she'll appreciate the gesture, especially because you raised the bride mostly on your own. Also, you didn't say what your daughter's feelings are about all this. Talk to her about it and see how she feels.