Anglo-Israel by W H Poole (1879) - 003

British Israelism (also called Anglo-Israelism) is a pseudoarchaeological movement that holds the view that the people of the British Isles are "genetically, racially, and linguistically the direct descendants" of the Ten Lost Tribes of ancient Israel. John Alexander Dowie, Clem Davies, Gordon Lindsay, and others influential to William Branham were supporters and promoters of British Israelism.
The main tenets of British Israelism are:
• Most Israelites are not Jews
• British are descended from the Lost Tribes
• The British throne is a continuation of the Davidic throne
• Britain and the United States are the inheritors of Jacob's birthright
In the United States and Canada, religious leaders used British Israelism as a foundation for the extremist Christian Identity Doctrine, which William Branham later re-branded as "the Serpent's Seed Doctrine".

https://william-branham.org/site/research/topics/british_israelism