Father and Son Serve Together Marine Corps Master Gunnery Sgt. Mark A. Tyson, left, and his son, Marine Corps Sgt. Stephen A. Tyson, pose for a photo at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., June 20, 2016. The father-son duo spent Father’s Day, June 19, 2016, together during Integrated Training Exercise 4-16. Marine Corps photo by Sgt. Sara Graham SHARE IMAGE: Download Image: Full Size (0.43 MB) Photo By: Sgt. Sara Graham VIRIN: 160620-M-MH863-345.JPG Photo Gallery