Annie Glenn, seated, widow of John Glenn, watches as members of the U.S. Marine Corps, from Marine Barracks Washington, carry the casket of her husband during his graveside service in Section 35 of Arlington National Cemetery, April 6, 2017, in Arlington, Va. Glenn, the first American astronaut to orbit the Earth, and later a United States senator, died at the age of 95 on Dec. 8, 2016. (U.S. Army photo by Rachel Larue/Arlington National Cemetery/released)