Where Did This Breed Come From And Color Size, Of Pocket Beagles?

There isn't any such breed as a pocket beagle really, they are smaller beagles which generally is frowned upon as these teacup, mini, pocket whatever breeds are either lies, health problems, or very poor breeding practices in general. To know more in general about beagles you should start researching at the beagle club of america and I'd probably talk to a few of the listed breeder's about it as well.

clubs.akc.org