Walter is a fairly recent discovery - I'm currently writing the story of my Ewing family (it's turning into something of an epic) where some new research lead me to discover one of my 5xg-grandfather's sisters, previously thought lost, was actually widowed at the start of the 1850s and then emigrated, with her children, to America. While she probably died in Wisconsin sometime in the 1860s, two of her sons moved on to Minnesota and settled and had family there. The grandson of one of these Minnesota pioneers was Walter Henderson.
He was born near Spicer in Kandiyohi County in 1892. After school and some farm work, he ended up in Montana working for the Home Lumber Company, and in September 1917, six months after the US entered the Great War, he volunteered and was assigned to the 362nd Infantry, 91st Division, at Camp Lewis. On Christmas Eve of that year he married, in Washington but to a Spicer girl, and in June, by now a Corporal, he was mobilised with Europe as his destination (his troop train actually passed through Willmar, Kandiyohi, and he was able to see his family again, briefly, before he left).
Walter arrived in England in July 1918, and after a short while they were off to France where they spent their first few weeks in the battle-torn country training for what was to come. What was to come turned out to be hot battle - St Mihiel, where 300 Americans were lost, and then, constantly under the threat of German planes and gas, on to the Argonne and Epinonville. On the 29th September the Division found itself in action at Gesnes, battling enemy soldiers holding the Kriemhilde Line. It was here that Walter lost his life - he was last seen scouting ahead of a ridge occupied by his company.
Walter's grave, along with over 14,000 of his fellow US servicemen, can be found at the Meuse-Argonne Cemetery near Romagne-sous-Montfaucon in France. You can see my own family war memorial here.