Dong Ha 20 June 1968 Ammo Dump Hit

I spent 10 hours trapped in a grave with 3 other Marines. Artillery from North Vietnam hit the ammo dump at 1600 on 20 June 1968. Is anyone else out there? I was with Maintenance Company, Engineer Platoon, FLSG Bravo. A 2nd Lt and a volunteer crew rescued us about 8 or 10 hours later, I have connected with one other individual. If you are out ther, pop smoke.