When did the US Navy sink its first enemy submarine?

For decades US destroyer men were saying that they sank a Japanese Mini-Sub outside the mouth of Pearl Harbor before the air attack began on 07 Dec 1941. And for decades, no one believed them. Then, sometime in this 21st century, a civilian diving sub went down to where the destroyermen said they sank a IJN sub. They brought one of the destroyer's crewman with them...they found the IJN sub! They always said they hit it with their 5 inch mount from their destroyer, the USS Ward. Sure enough, there was a 5 inch hole in the sub's conning tower; it went all the way through and outside the other end, without exploding (this was televised, possibly National Geographic). J-u-s-t like they said!