Mother remarried/ father not remarried

Wording when the mother has remarried and the father has not remarried, and the invitation is issued jointly:

Mr. and Mrs. Charles Spaulding
Mr. Earl Galvin
request the honour of your presence
at the marriage of their daughter
Karen Isabel
and
John Allen Baker
Saturday, the eighteenth of November
at eleven o'clock
Briarwood Chapel
Cedar Rapids, Iowa