Regimental History of the 45th Rattray's Sikhs (for private circulation only) London: Sifton Praed & Co., 1925. Regimental History of the 45th Rattray's Sikhs is a comprehensive account of the renowned regiment's origins and military engagements from 1856 to 1914. Written by Colonel H. St. G. M. McRae, the book delves into the regiment's formation during the Indian Mutiny and its subsequent role in various conflicts, including the North West Frontier expeditions and the 2nd Afghan War. It also highlights the regiment's participation in World War One, specifically in Mesopotamia.