Browsing the past records of the Minnesota board, I found this entry dated 4/9/2007:
MEMPHIS DAILY APPEAL, [MEMPHIS, TN], April 12, 1862, p. 1, c. 2
A Trophy.�The 9th Tennessee are in possession of the Minnesota battery** flag, captured by them on Sunday last [5th]. The regiment fought so gallantly as to draw from Gen. Cheatham the highest encomiums.
** Believe the 1st Minnesota Light Artillery Battery
From Military Annals of Tennessee, Confederate, John Berrien Lindsley, Vol. 1, p. 272, Ninth Tennessee Infantry
"J. W. Meux of Company C, captured a hahdsome battle Flag . . . . . . . The part under Col. Hart captured a section of artillery in their first action, and during the day several stands of colors were taken."