>>>>"Empty, isn't it?" asked the soldier working with me. I put my hand in it and drew forth a handful of roasted acorns; I showed them to my comrade.
"That's all," I said.
"And he has been fighting like a tiger for two days on that forage," he commented. We gazed at the face of the dead soldier with new feelings.<<<<

Not really surprised at the eating of roasted acorns, although this is the 1st I've seen this account. Reason I'm not surprised is because I've seen where Indians would put aside acorns for winter food, After all, they are a type of nut.
Another thought here. I've read many accounts of both soldiers and civilians using roasted acorns for making coffee.