It was while surving as a private in company D,Third Iowa Cavalry,that James Dunlavy performed a deed which entitled him to recognition as a brave and gallant soider,and proved him equal to the demands of war as well as of peace.On the 25th day of Oct.1864 single handed and alone, while suffering from a wound in the right arm caused by a missile thrown off from a bursting shell,and while riding a horse which had had been wounded by the same said shell,Dunlavy captured and received the surrender of the Confederate Major General,John S.Marmaduke at Osage,Kansas.
This feat is unique in that it is probably the only instance in recorded history of the capture of a Major General by a private soldier on the field of battle.Medal of Honer awarded to him by Congress in January 1865