Oin:
Oin was one of the dwarves that journeyed to the Lonely Mountain with Bilbo Baggins and Thorin Oakenshield to help reclaim Erebor from Smaug. He was the son of Gloin.
After the battle was over Oin went on with Ori and Balin to the Mines of Moria. When the Orcs invaded the mines, Oin was killed by the Watcher in the Water.