To those who have asked about sending Christmas packages to Elder Dallas, first—Thank you!
Second, the mission office has requested holiday packages arrive by December 5 (I know, right?!) clearly marked with CHRISTMAS on the address label. All the missionaries will gather for a Christmas party where they'll all open their presents together.
We don't know when this party will be, so just be aware that if you do send a package after December 5 and/or do not mark it CHRISTMAS, it may not be part of this celebration.
Thanks for your good wishes and prayers!