I found out what happened to my Grandfather (my father's dad):


Nachname: Kühn
Vorname: Heinz
Dienstgrad: Obergefreiter
Geburtsdatum: 18.12.1909
Geburtsort: Frankendorf
Todes-/Vermisstendatum: 20.12.1945
Todesort: Kgf. in Dnjeprodsershinsk


He died in a POW camp in the Ukraine months after the war was over. Rumour in the family is he was shot trying to escape, but it could have been any number of things(malnutrition, disease. Some day I will visit the Ukraine and see his grave.