Leonard Cusack graduated from St. Dunstan's University in 1969 and has a Master of Arts degree in Canadian History from the University of New Brunswick. During his career, Leonard was a high school teacher and principal, a public servant, and a sessional lecturer in history at the University of Prince Edward Island. His previous books include A Magnificent Gift Declined: The Dalton Sanatorium of Prince Edward Island 1913-1923; A Party for Progress: The P.E.I. Progressive Conservative Party 1770-2000; and Owen Connolly: The Making of a Legacy 1820-2016.