Another was something like, "History of a private campaign," about a group of boys in Missouri who form a small band of rebel soldiers, under the direction of a fanatic adult, during the Civil war. It's hilarious but ends tragically.
The work to which you refer is The Private History of a Campaign that Failed
. It was, originally, always published followed by The War Prayer
. The character who is killed by the boys at the end of The Private History
is only referred to as "the Stranger." In a 1981 "made for television" movie of The Private History
, The War Prayer
is added at the end, and the actor who plays "the Stranger" in The Private History
is the stranger who enters the church in Connecticut to thunder forth the War Prayer. It was done very well.