About the author: Anonymous American Prisoner-of-War. From names mentioned in the entries, it seems the author was an officer, held as a POW with other officers, a Catholic, and had the nickname, “Mac”. The mention of one officer, Chastaine, suggests the officers had served in Mindanao. The name of another, Humber, suggests the Philippine Southern Command under Maj. Gen. William F. Sharp. Another General, Joseph P. Vachon, is specifically mentioned in an entry. This suggests, in turn, the possibility that the diary dates from the period that American POWs were incarcerated in Camp Casisang in Malaybalay, Bukidnon.
About the diary: Typescript, Philippine Archives Collection, Anonymous POW 1942 Diary 1255524 Box 143E Folder 9. The diary is from August 26, 1942 to September 10, 1942.