Nice BHPs you have.
I've been keeping BHPs for about 14 years and have bred them for 11 now. I've also done a ton of research into our lines and what was "brought in" over the years.
One thing I can say for absolute certain is there are no verifiable locale animals anywhere in this country.
Sure, there are "west" animals, etc but...I'm not aware of any definite locale (like Pilbara for example) existing here in the US.
There were animals that were brought in from all over the western region. Wether or not those animals were from 3 miles away or 300 miles away is anybody's guess. Lots of variation can occur with-in a relativity short distance. I've got western animals....and some of them are very "Pilbara" looking in appearance but, when bred together....shows signs of being mixed locales....maybe from further north such as Sandfire or 80 mile beach.
Most of our founding BHPs were established in captive collections in the US from zoo line animals. Same for Europe and Australia for that matter.
In fact, the origin of the axanthic BHPs all over the world trace back to a founding zoo line in Aussie from Northern Territory animals.
Ironically enough, I have not been able to find any solid info on "eastern" animals or "queensland" animals anywhere in the US and from what I know from the lines that are here legally and not....they do not exist in the US.
I'm sure there may have been a few that came through but, knowing the time line (I've been watching BHPs on pricelist and talking to breeders since the mid 80s about these animals)....there just doesn't seem to be any around. None of our zoo lines were eastern animals and when the smuggling was going on....they were going after the smaller and more contrasted "western" animals.
Love the history of this species though. There is no other species that has held it's value as long as (in natural form) other than the Boelens.
D