Kmccoy, I agree with you. If you look at my changes today, I included only the birth dates of the two children who are now adults (one of whom has a Wikipedia article already) with three independent sources for Track’s birth date of 20 April 1989, and I included the birth date for baby Trig, since he was SO MUCH in the news last year. I was trying to find a compromise position. There is no consensus here for including or for excluding, and, if you read previous talk pages, you will see no consensus there either.

In the spirit of erring on the side of more information (Wikipedia’s mission is to inform, after all), I made today’s revision. The immediate reversion, wiping out all birth dates, except that of little Tripp Johnston (certainly the most irrelevant birth date of all), is a bit risible and does not demonstrate any consensus either. As for the sources, I shall find better ones, but that argument is a red herring. No one has found any other birth date for Track other than 20 April 1989. All the sources (weaker or stronger) agree on the birth date.

I have read WP:UNDUE. It supports including neutral factual information. Birth dates fall into that category. I really don’t see where the problem is here. I shall not continue to include the birth dates in the article, but this demonstrates that Wiki-articles need more consistent management. It is troubling that there is a small minority who insist upon exclusion when Wikipedia should stand for inclusion.