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How do I address an invitation to an unmarried couple, and include their child that has the father’s last name? Is this correct?

Bill and Jane Jones (Jane is the child)/
Betty Cooper/
(Their address).

If not, what is correct. Please help so as not to hurt anyone’s feelings…

–K.S.

I would write the three names on the envelope this way:

Ms. Betty Cooper and Mr. William Jones
Miss Jane Jones
(Their address)

Should you need more space on the top line:

Ms. Betty Cooper and

Mr. William Jones

Miss Jane Jones

(Their address)

For a formal wedding, you would not include the child’s name on the envelope. Her name would appear on the inside envelope like this:

Ms. Cooper and Mr. Jones

Jane Jones 

~Didi