Sylvanus KIDDER served during the 1st World War. In 1917, Sylvanes Kidder left behind his home a 40-acre farm on C.R. 8 in Elkhart, Indiana known as "The Ranch" by friends and family, to fight in World War I. From 1917 to 1920, Sylvanes served in France and Germany, bringing fresh horses to the front lines. Sylvanes Kidder fancied himself a cowboy, so the task suited him.
He married 12 June 1920, Olga ESKILSSON, they had 8 children.