General Vincendon said: "Colonel Duncan is the hardest man to stop fighting I ever saw.

He doesn't know when to quit." One of the most daring exploits by a member of the regiment was that performed by Sergeant Matthew Jenkins, a Chicago boy and member of Company F.On September 20, at Mont des Singes, he went ahead of his comrades and captured from the Boche a fortified tunnel which by aid of his platoon was held for thirty-six hours without food or ammunition, making use of the enemy machine gun and munitions until relieved.

This gained for Sergeant Jenkins the Croix de Guerre with Palm and the Distinguished Service Cross.
A deed of remarkable bravery accompanied by clever strategy was performed by Captain Chester Sanders and twenty men mostly of Company F.
It won decorations for three and the unbounded admiration of the French.
Captain Sanders and his men offered themselves as sacrifices in an effort to draw the fire of about a dozen German machine guns which had been working havoc among the Americans and French.

The Illinois men ran into the middle of a road knowing they were under German observation.
Instantly the Germans, suspecting a raid on their lines, opened fire on the underbrush by the roadside, figuring the Americans would take refuge there.

Instead they kept right in the center of the road and few were wounded.