Gerald Warner was the American Consul in Kobe, Japan the day Pearl Harbour was bombed. The war diary starts from 8 December 1941 until 25-28 August 1942 after the repatriation ship, "Gripsholm" had docked in Jersey City, United States.
An interesting read: https://www.adst.org/OH%20TOCs/Warner,%20Gerald.war%20diary.toc.pdf