Warrant Officer Kenji Yanagiya ( , Yanagiya Kenji , March 1919 February 29, 2008) was a member of the Imperial Japanese Navy's Zero fighter aces who fought the Battle of Solomon Islands in October 1942 June 1943. He is best known as the only escort fighter pilot of the Yamamoto mission to survive the war.

Can we draw the following conclusion?
Only one escort pilot of the Yamamoto mission survived the war.
Yes