Glyn Harper is Professor of War Studies at Massey University and is General Editor of the Centenary History series. A former teacher, he joined the Australian Army in 1988 and after eight years transferred to the New Zealand Army, where he rose to the rank of lieutenant colonel. Glyn was the army's official historian for the deployment to East Timor. He is one of New Zealand's best-known military historians and the author of nineteen books, including six books for children. Many of these books are on aspects of the First World War and have achieved best-seller status.

Jenny Cooper is an award-winning illustrator who specializes in a realistic style. Her previous books with Glyn Harper include the internationally acclaimed Jim's Letters .