The first 11 sailors were found on Tori - shima , where Manhattan anchored to hunt for turtles to supplement the ship 's provisions .
Were survivors from the Koho - maru wrecked en route to Edo .
The first 11 sailors were found on Tori - shima , where Manhattan anchored to hunt for turtles to supplement the ship 's provisions , and were survivors from the Koho - maru wrecked en route to Edo .