My father's discharge papers indicate he was discharged as Sgt., 69th Amphibian Tractor Bn. I have found that the 69th ATB absorbed the 69th Tank Bn. on 7/10/45 at Ettersberg Germany and it was inactivated on 3/8/46 at Cmp Kilmer. However, I can not find any detail(attachments or activities) on this unit from the time it was formed until it was inactivated. Can anyone help?