Simply fill out the "To:" section with your child's name and address. For the "From:", add Santa's name and North Pole.Adopt a child's letter to Santa this holiday season with the USPS Operation Santa® program. All the details on writing letters to Santa, where to send them to, and how to get a reply. Such a fun Christmas tradition with kids! Write a personalized response to the child's letter and sign it "From Santa. " Insert both letters into an envelope, and address it to the child. Have your child write a letter to Santa. The program provides gifts for children between 18 months and 16 years of age. The University of Phoenix is an online college that is accredited, affordable, and has degrees that align to careers.