c. 32 BBY
Silver was the name of a clone trooper captain who commanded a Pelta-class frigate during the Clone Wars. He rescued survivors from Endurance, but did not find Commander Ponds and Admiral Kilian, so he left because he thought they were dead.
In 22 BBY, Silver was part of a team that was tasked with rescuing the survivors from the wreckage of the Endurance. He commanded a Pelta-class frigate, and waited from the word of the Jedi. He waited for Admiral Kilian and Commander Ponds, but had to leave.