This is a working process of the materials used in researching the podcast.
General
The Prime Ministers by George Michael Thomson
1700s
Revolution: The Great Crisis of the British Monarchy, 1685-1720 by Tim Harris
The Penguin History of Britain: A Monarchy Transformed by Mark Kishlansky
Revolution: A History of England Volume IV (The History of England) by Peter Ackroyd
Stability and Strife: England 1714-1760 by W.A. Speck
Pitt the Elder by Jeremy Black
Robert Walpole by Betty Kemp
William Pitt the Younger by William Hague
1800s
Why Spencer Perceval Had to Die: The Assassination of a British Prime Minister by Andro Linklater
George Canning by Wendy Hinde
1900s
English History 1914–1945, by A.J.P. Taylor