Sally's parents are divorced but neither has re_married and are both hosting the wedding: Use the format above or if they prefer it, list Sally's mother's name on the first line and her father's on the second. Sally's parents have both remarried and are jointly hosting the wedding. Sally may wish to break with tradition and mention her step parents in which case Sally's mother and her husband's names should be on the first line with her father and his new wife's name on the second. Neither of Sally's parents is living: The invitation should be issued by whichever family member is hosting the wedding or by the couple themselves.
A mistake on the address or other pertinent information can require expensive reprints. Do not order an invitation that does not match the style of the wedding or that gives the wrong impression. The number of invitations you send will depend on the number of guests that are being invited. Make a list of all the people both the bride and groom want to invite. Break the numbers down into single people and couples or families. Each group of people being invited should only be sent one invitation.