I have had previous contact with Mr Kantz. His father Richard O Kantz was member of 8th Tank Bn, 4th Armored commanded at the time by then Maj, now BG Albin F Irzyk USA ret. On Dec 23, 1944 8TB/4Arm wa in a significant Tank Battle in Chaumont BE. Tank in which Kantz was a crew member was blown up outside the village. See Chaumont-Ardennes Belgium.