From the US Department of Defense:
"The future USS Omaha, designated LCS 12, is the eleventh littoral combat ship to enter the fleet and the sixth of the Independence-variant design, the release said. It is the fourth warship named for the Nebraska state capital. The first ship was a propeller-driven sloop-of-war. The second ship was a light cruiser, and the third Omaha was an attack submarine."
https://www.defense.gov/News/Article/Article/1429521/navy-to-commission-littoral-combat-ship-omaha/
"The future USS Omaha, designated LCS 12, is the eleventh littoral combat ship to enter the fleet and the sixth of the Independence-variant design, the release said. It is the fourth warship named for the Nebraska state capital. The first ship was a propeller-driven sloop-of-war. The second ship was a light cruiser, and the third Omaha was an attack submarine."
https://www.defense.gov/News/Article/Article/1429521/navy-to-commission-littoral-combat-ship-omaha/