Tommy Atkins is slang for a common soldier in the British Army. It was well established during the nineteenth century, but is particularly associated with the First World War. It can be used as a term
"Tommies" from the Royal Irish Rifles in the Battle of the Somme's trenches during the First World War
A publicity photograph of "Tommy Atkins", a soldier of the 51st (Highland) Division, seated with a large doll in his arms, taken during the German offensive in Lys, 13 April 1918
Front cover of sheet music, pub 1893, for song "Private Tommy Atkins" composed by Samuel Potter (1851–1934) and Henry Hamilton (c. 1854 – 1918). Signed by baritone C. Hayden Coffin.
The Brodie helmet is a steel combat helmet designed and patented in London in 1915 by Latvian inventor John Leopold Brodie. A modified form of it became the Helmet, Steel, Mark I in Britain and the M1
Tommy Atkins
…Alternative names for the British Brodie helmet Digger, Doughboy and Poilu for the Allied counterparts…
A British Mark I helmet dating from 1917. This was a developed version of the original Brodie helmet and was worn by British Empire and US troops.
The Illustrated War News—17 November 1915 The caption reads: "Head-wounds have been more than usually numerous during the war, owing to the trench-fighting, and more than usually severe, owing to the extensive use of shrapnel. But the danger, although it cannot be avoided, can be minimised. Our Army has now followed the French by adopting steel helmets, calculated to stop shell-splinters and shrapnel. Even in cases of extreme risk, not only has death been avoided, but injuries have been confined to bruises or superficial wounds. Cases have occurred in which the wearers have been hit, but saved by these helmets from what without them would have meant certain death. The fur coats, as they did last year, mean mitigation of the rigours of winter. The French helmets are known as "Adrians," after their inventor. (Photo by Illustrations Harrow)."
The Loyal North Lancashire Regiment showing off their new Brodie helmets (1916).
U.S. Army Infantryman in 1942 wearing an M1917A1 helmet