Great story. Did they tell you much about it? What did they see... Can you share a little more?
As a child I used to listen to my parents and other relatives talk about the War. Not much more to that particular story, they were pulled onto a side track and could see and hear Dresden being bombed. They did describe the glow from the fire storm in the sky. After their train was rerouted around the city so they never went through it. Fortunately for them ( and me!) they ended up just inside the US zone of occupation at wars end, near Salzburg Austria liberated by Patton and 3 rd Army.
The funniest part was after being bombed countless times during the war by the USAAF stories I heard many times, I ended up a USAF officer, which my dad was extremely proud of.