Geoffrey Russell Searle is Emeritus Professor of History at the University of East Anglia. His published works include The Liberal Party: Triumph and Disintigration 1886-1929 (1992) and Country Before Party: Coalition and the Idea of National Government in Modern Britain 1885-1987 (1995).

Alun Wyburn-Powell is an Honorary Research Fellow at the School of Historical Studies at the University of Leicester and a Visiting Lecturer at the Department of Journalism at City University. He has written a number of books including: Clement Davies: Liberal Leader (2003) and Defectors and the Liberal Party 1910-2010 (2012)