Nothing is known about Nimitz' past.
Night Jedi serviceEdit
Post Iron Fists WarEdit
After the Iron Fists War, Lt Nimitz was assigned to Isus' team, taking the Intrepid to locate and negotiate with various shipyards for replacement craft. Afterward, Nimitz was assigned command of one of the Liberator-class cruisers from Sorosuub on Sullust, and flew it back to Endor.
He later returned to Kamino, where he and Mon Shurima had negotiated a deal with Kamino Clones and Exports, to settle a dispute there. After things turned violent, he escaped back to orbit aboard the Lamdba-class shuttle Endeavour. However, the shuttle was fired upon, and disabled by an ion blast. He was captured, accused of terrorism, and eventually released on bail. He returned to the the Reliant, and was present when the fleet returned to Kamino shortly afterward. After the mission to Kamino, he returned to the Night Jedi Army as sensors officer.