Although Jayne was in poor health for lengthy periods during the First World War, and Edward Mercer, a retired Bishop of Tasmania, carried out many of his duties, Jayne left no one in any doubt about his support for British participation in the War against Germany and her allies.
Despite Jayne being chronically ill throughout World War I, and with Edward Mercer, a former Tasmanian bishop, fulfilling much of his responsibilities, there was never any ambiguity regarding Jayne’s backing for British involvement in the conflict against Germany and its associates.