Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Yukio Seki:

"

In 1938 he applied to enroll in the War Academy of both the Imperial Navy and the ground forces. He was accepted to both; he chose the Japanese Naval Academy at Etajima. During this time, his father died and his mother closed the antiques shop and lived alone. In 1941, one month before the Pearl Harbor attack, Seki graduated and was ordered to the Battleship Fusō. In June of the same year, he was promoted to lieutenant. Soon he was transferred to the seaplane carrier Chitose.[1]