https://www.digital.archives.go.jp/item/en/3083373

[Items] "松江高等学校教授曽我部忠四郎外十三名叙位ノ件", 叙00841100-00900, National Archives of Japan Digital Archive, https://www.digital.archives.go.jp/item/en/3083373(accessed 2026-11-11)