Gabor Altmann, a hungarian Auschwitz survivor, saw his sister and his daughter the last time at the “Rampe”. His daughter, Esther Altmann describes her impressions of the Gröning trial in her Blog (Times of Israel):

As I listened to Groening’s dispassionate ramblings, the lens of my imagination focused narrowly on the platform, on the families wrenched apart and annihilated, the teenagers selected and tortured in slave labor camps. Where was my 18 year old father standing? I searched for him in the Auschwitz photos flashed on the evening news and in the newspaper articles that sprouted up everywhere. How many days had he been in the cattle car? Where was he on the platform? Did he say goodbye to his father, his sister? How long was he in Auschwitz before being sent on the death march to the slave labor camps at Mauthausen, Melc, and finally, to Ebensee where he was liberated. I had spent a lifetime reading Holocaust literature yet did not know what had happened to my own father whose trauma was sealed and buried.

You can read the whole text here.