TLS, one page, 8 x 10.5, NASA letterhead, August 12, 1969. Letter to Charles P. Geer, dated just two days after he emerged from quarantine following the successful Apollo 11 mission. In full: "Thank you for your letter to Dr. Gilruth along with the many letters from the children in your summer recreational program. The enthusiasm and interest shown by our young people are always particularly encouraging to us. Many thanks for the vital part you and your office played and please convey to the children our sincere thanks and best wishes." In very good to fine condition, with irregular overall toning. Accompanied by the original mailing envelope.