Statistics for occurrence #1 of “Colonel Szymanski” in chapter 5, page 38 of John Dimitry , A. M., Confederate Military History, a library of Confederate States Military History: Volume 10.1, Louisiana:

...onclad steamer Louisiana. Besides these measures for defense, Captain Mullen's company of sharpshooters was stationed on the point of the woods below Fort Jackson. At the quarantine battery was Colonel Szymanski 's Chalmette regiment.
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