Tameichi Hara’s description of the PT-109 incident, in his autobiography “Japanese Destroyer Captain”, is somewhat less than heroic.
According to Tameichi Hara’s Wikipedia entry he was not personally involved in the sinking of PT-109 and would have had no first hand knowledge of the incident. He was certainly in no position to know JFK as a commander or naval officer.
Towards the end of the War, he did, however, train young men to fight dressed as women and children, so he would know about “somewhat less than heroic”.