| ARIMA, Yorinaka | Hatoyama Hall |
| HAYASHI, Sachiko | Historiographical Institute, The University of Tokyo |
| HOSHI, Kiyoshi | Ishibashi Tanzan Memorial Foundation |
| IMAI, Seiichi | K.K.Kyodo News |
| ISHIBASHI, Masashi | Library of Kochi City |
| ISHIBASHI, Shozo | Ministry of Finance, Policy Research Institute |
| ISHII, Koichiro | National Archives of Japan |
| ISHIKAWA, Reiko | Ohara Institute for Social Research, Hosei University (OISR.ORG) |
| KAMADA, Kaoru | Parliamentary Museum |
| KASHIWABARA, Hyoshiro | The Asahi Shimbun Company |
| KATAYAMA, Tamio | The Eisenhower Presidential Library and Museum |
| KAWAGOE, Ikuko | The National Science Museum |
| KISHI, Nobukazu | The Secretariat of the House of Representatives (The National Diet of Japan) |
| MASAKI, Teruo | Tokyo Metropolitan Library |
| MIZUNO, Masakazu | Tokyo Metropolitan Museum of Photography |
| NAKANO, Kinue | Waseda University Library |
| OBAMA, Yasuko | Yokohama Archives of History |
| OKI, Hideaki | |
| OYAMA, Tomoko | |
| SASAKI, Takuya | |
| SHIMOKOBE, Motoharu | |
| SHINODA, Yasunao | |
| SODEI, Rinjiro | |
| SUZUKI, Rumiko | |
| SUZUKI, Ryuzo | |
| TAKAHASHI, Yoichi | |
| TSURUMI, Kazuko | |
| YODOGAWA, Miyoko | |
| YOSHIDA, Akiko | |