I'm going to guess it was called grey owl rather than white owl. I had four of them at one time, they're a cultivar of juniperus virginiana. The ones I had didn't seem to revert to juvenile foliage as fast as the species typically does but they also seem far less vigorous. I "finished" the last one this spring when I moved.
No photo, I was passing by on a trip. Will be going back end of Dec, was checking to see if they were worth the time. Both look like normal juniper, the vendor had made tags for the Saybrook (maybe I am incorrect on that one).
Thanks for the reply.