Silversides's second war patrol was also conducted in the area of Kii Suido, from 15 July to 8 September.
On 28 July, she sank a 4,000-ton transport, followed by the sinking of the passenger/cargo ship Nikkei Maru on 8 August.
 She scored damaging hits on a large tanker on the night of 14 August and, on 31 August, sank two enemy trawlers before returning to Pearl Harbor.

Although there were no confirmed sinkings during Silversides's third war patrol, conducted in the Caroline Islands, the submarine did severe damage to a large cargo ship and gained two observed torpedo hits on a Japanese destroyer or light minelayer for undetermined damage.
She terminated her third patrol at Brisbane, Australia, on 25 November.
Silversides's second war patrol was also conducted in the area of Kii Suido, from 15 July to 8 September. On 28 July, she sank a 4,000-ton transport, followed by the sinking of the passenger/cargo ship Nikkei Maru on 8 August.  She scored damaging hits on a large tanker on the night of 14 August and, on 31 August, sank two enemy trawlers before returning to Pearl Harbor.
Although there were no confirmed sinkings during Silversides's third war patrol, conducted in the Caroline Islands, the submarine did severe damage to a large cargo ship and gained two observed torpedo hits on a Japanese destroyer or light minelayer for undetermined damage. She terminated her third patrol at Brisbane, Australia, on 25 November.
USS Silversides (SS-236)