Deerly, they do seem to still be quite rare in the States. The breed nearly died out at the turn of the last century, but the Canadian government got themselves organized and brought it back. Now there are around 13,000 registered horses, but my guess is most of them are in Canada.
Kenda, the two you posted are beautiful! I love the mare's tail. I looked up their pedigrees...the Henryville line is supposed to be very steady, calm and kind. Our mare has a lot of the Fox line in her, but she didn't seem to get too much of the supposed mischievousness of his offspring. Although, both of our mare's foals are very gregarious and opinionated!