The Battle of Iron Bottom Sound occurred on November 13-14,1942. The US Navy got mauled and badly. It was the engagement in which the U.S.S Juneau was sunk. With went the five Sullivan brothers, all were lost, poor guys.
I am currently writing a piece on eight sets of brothers that were killed aboard USS Oklahoma during the Pearl Harbor attacks. In 1948, I believe, the government passed a sole survivor policy so a family couldn’t be completely wiped out as the Sullivan Family was.