We just got copies of "Washington at Valley Forge" by Russell Freedman, c. 2008, published by Holiday House ISBN: 978-0-8234-2069-8 (Hardcover)
"Lafayette's force included forty-seven Oneida Indian scouts, "Stout-looking fellows and remarkably neat," according to Private Joseph Plumb Martin, who was assigned to the expedition. The Oneidas had adopted Lafayette into their tribe and named him Kayweda, after one of their greatest warriors."
"The Oneida scouts, bringing up the rear of the retreating American column, made their own contribution to Lafayette's escape. As British cavalrymen brandishing sabers galloped toward the retreating Americans, the Oneidas let loose with a hair-raising war whoop, startling the horsemen and frightening their steeds. The horses bolted and turned heel, giving the Americans time to reach the river safely. Later, when the British began their own retreat, the Oneidas rushed back across the river and harassed the enemy's flanks as the redcoats hurried toward Philadelphia."
"A French interpreter at the camp was similarly moved while walking in the woods before breakfast one morning. From a distance he heard " a most powerful voice...yet melodious," singing a song from a popular French opera. He was astonished "when suddenly I saw...before me a tall Indian...in American regimental and two large epaulets on his shoulders." The singer was a Canadian Abenaki who spoke French and English. Raised by Jesuit priests under French rule in Canada, he had joined the Americans at the beginning of the war; rising to the rank of colonel in the Continental army."