John McCallum was born in Glasgow in 1917, and was brought up there and in Oban. He left school aged 14 to work as a Boy Messenger in the Post Office. Aged 18, he transferred to its Engineering Department as a trainee and spent two years on external telephone work, later being transferred to indoor work on switchboards. He joined the Supplementary Reserves in the Royal Signal Corps in 1935, where his step-brother Jimmy O'Neill was already enlisted.
Trevor Royle is a broadcaster and author specialising in the history of war and empire. He is a Fellow of the Royal Society of Edinburgh and is also a member of the Scottish Government's Advisory Panel for Commemorating the First World War.
John McCallum was born in Glasgow in 1917, and was brought up there and in Oban. He left school aged 14 to work as a Boy Messenger in the Post Office. Aged 18, he transferred to its Engineering Department as a trainee and spent two years on external telephone work, later being transferred to indoor work on switchboards. He joined the Supplementary Reserves in the Royal Signal Corps in 1935, where his step-brother Jimmy O'Neill was already enlisted.
Trevor Royle is a broadcaster and author specialising in the history of war and empire. He is a Fellow of the Royal Society of Edinburgh and is also a member of the Scottish Government’s Advisory Panel for Commemorating the First World War.