Fourteen-year-old George Maguire was eager to serve the Union when his home state, Maryland, began raising regiments for the coming conflict. Too young to join, he became a "mascot" for the Fifth Maryland Infantry Regiment, organized in September 1861. Although he never formally enlisted or carried a weapon, Maguire recounts several pivotal events in the war, including the sea battle of the Monitor vs. Merrimac, Peninsula Campaign action,...