Samuel Briggs Todd of the Crescent Regiment-- Part 1: A Confusing Regiment in Mouton's Brigade

From the National Park Service Battle Unit Details and Civil War Louisiana sites.

The Crescent Regiment was organized by men from New Orleans and entered Confederate service in May 1861.

The unit fought at the Battle of Shiloh and reported 23 killed, 84 wounded and 20 missing.

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The Crescent regiment was also the 24th Louisiana Infantry Regiment.

They were part of the Alfred Mouton Brigade, later the Mouton-Gray Brigade.  Mouton's Brigade consisted of, off and on,  the 18th Louisiana, 24th Louisiana and the 28th Louisiana.  It gets somewhat confusing with units in the brigade also called  10th Louisiana Battalion (Yellow Jacket Battalion),  11th Louisiana Battalion, 12th Louisiana Battalion ( Confederate Guards Response Battalion) and 33rd Louisiana  Regiment.

Also you might come across the Consolidated 18th Louisiana Regiment and Yellow Jacket Battalion and the Consolidated Crescent Regiment.

Like the man said, very confusing.

--Old Secesh