Allen Setters

Does anyone know whatever happened to the Allen Setters? This was a strain of extremely reliable setting  chickens that were used for hatching pheasant eggs.
I really would love to find out what breeds were used to make this strain.

I googled the term and was inundated with information.
From;
Allen Setters explanations
"The Allen Setters were developed specifically for the purpose of hatching pheasant eggs.
In addition to Spangled, Allen Setters appear in Silver Quail, Silver Brassy Back, Brown Breasted, Brown Red and Partridge."

John C Daley wrote:I googled the term and was inundated with information.
From;
Allen Setters explanations
"The Allen Setters were developed specifically for the purpose of hatching pheasant eggs.
In addition to Spangled, Allen Setters appear in Silver Quail, Silver Brassy Back, Brown Breasted, Brown Red and Partridge."

Yes, but what breeds were used?
I don’t even know how/where to begin research for information….🤷🏻‍♀️

Q: What is a setter and what is a non-setter in chickens?
A: A setter is a hen who will hatch her eggs. A non-setter is a hen who will not hatch eggs.
The vast majority of chicken breeds will occasionally go "broody," meaning they will set their eggs and try to hatch them.
However, a "setter" usually refers to a breed (or a specific hen) that frequently goes broody.
Orpingtons and cochins are setters, for instance.
From that above website this explanation was supplied

The Allen Setters were developed by George Allen of Salt Lake City, UT (editor of The Gazette , a magazine devoted to wildfowl and other exotics). The Allen Setters were developed specifically for the purpose of hatching pheasant eggs.
Here is a link to his publishing company Allen Publishing

There is not much about, but may be if you can track the magazine down it will help.
It was called "Pheasant Fanciers, Game Bird Breeders, and Aviculture's Gazette." and copies can be found for sale. Google have an E-book for some years publication.

John C Daley wrote:Q: What is a setter and what is a non-setter in chickens?
A: A setter is a hen who will hatch her eggs. A non-setter is a hen who will not hatch eggs.
The vast majority of chicken breeds will occasionally go "broody," meaning they will set their eggs and try to hatch them.
However, a "setter" usually refers to a breed (or a specific hen) that frequently goes broody.
Orpingtons and cochins are setters, for instance.
From that above website this explanation was supplied

The Allen Setters were developed by George Allen of Salt Lake City, UT (editor of The Gazette , a magazine devoted to wildfowl and other exotics). The Allen Setters were developed specifically for the purpose of hatching pheasant eggs.
Here is a link to his publishing company Allen Publishing

There is not much about, but may be if you can track the magazine down it will help.
It was called "Pheasant Fanciers, Game Bird Breeders, and Aviculture's Gazette." and copies can be found for sale. Google have an E-book for some years publication.

Thank you for helping me out with this!