My cousin (25), uncle (40's) and grandmother all live together. Is there a way that I can send one invitation to the house for all of them? Can I address it "Ms. Verneil Purdy, Mr. Douglass Purdy and Mr. Samuel Purdy" OR "Ms. Verneil Purdy and family"? Or do each one need their own invitation??
Please help I can't find anything on the internet for this!

THANK YOU