From The New-York Times February 13, 1861:
THE NEW FLAG OF LOUISIANA.
NEW-ORLEANS, Tuesday, Feb. 12.
The new flag of the sovereign State of Louisiana was unfurled to-day from the top of the City Hall, amidst the firing of cannon, ringing of bells, and cheers from the populace. …
You can get more information about Louisiana’s various flags at Flags of the World, Louisiana 101, and at Wikipedia. The information among the three sites does not line up 100%.