Hello Tim, thank you for uncovering this info about Jacob sheep I looked up a bit about them on thier breeders web site and also wiki, but it occured to me that Jacob culled out a unique breed of sheep which followed him and his sons into Egypt and out again. I find it most intriguing that they have ended up first in Britain and then America and now back in the state of Israel.
I'm wondering if this might be a way to trace Jacob's children after their dispersal from the land under the Assyrians and then later Judah to Babylon.