Just FYI, since there is only one handbook now, the direction is now 33.6.2 "A person age 9 or older who has a membership record but has not been baptized and confirmed is not a member of record. However, the ward in which the person lives retains the membership record until the person is 18. At that time, if the person chooses not to be baptized, the bishop cancels the membership record. The stake president’s permission is required." On the Church website, once you are in the person's information, there is a "Actions" button under the membership number. You can select cancel, and it will ask if you have permission from the Stake President.