If it's not in the original document, then I suspect this is something to do with vicarious Mormon baptisms (aka baptisms for the dead). As you may or may not know, the Mormons are very interested in genealogy, because they believe that dead people can be baptized as Mormons and enter Heaven that way. This is a very controversial topic, as they've done things like posthumously baptize Holocaust victims and the like. Anyway, Mormons also believe men and women can be sealed to one another as spouses in eternity (and, of course, men can have multiple wives but women only one husband in the afterlife). I suspect that this entry has something to do with the dead woman being vicariously baptized so she can be the wifely partner of a dead man in Heaven. In other words, perhaps she was sealed to him or christened for him.