A youthful Hero.
--From the Charleston Mercury, of the 11th inst., we take the following:‘ Master James O. A. McDowell, who celebrated his twelfth birthday last September, in Virginia, where he has been on active service as market for the Chester Guards, for the past five months, reached his native home, Charleston, yesterday morning. The youthful soldier has, during his service, seen more active military life than many a gray-haired veteran. He participated in the battle of Manassas, and was also prominent in sundry skirmishes and hairbreadth escapes.
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