Hart was a Masadan citizen and an officer of the Navy of Masada.

In 1903 PD, he held the rank of Lieutenant and was assigned to MNS Thunder of God as a communications officer. He was in charge of securing the bridge when the Masadans led a mutiny on the ship. He killed Commander George Manning, but only after Manning locked out the bridge's functions. He faced the wrath of Sword of the Faithful Matthew Simonds after the mutiny was completed. (HH2)