[2] His contribution to Japanese historiography is measured in the effect his teaching and example produced in a younger generation of students.
[3] Iwao was considered a leading scholar in the colonial period of Indonesian history.
The research used documents of the Dutch East Indies Company in the archives of the Hague and Jakarta.
[4] Iwao's research and writing covered a broad range, including his early work on Japanese emigrant communities in South Asia and his later work on the Edo period of national seclusion (sakoku).
[3] In a statistical overview derived from writings by and about Seiichi Iwao, OCLC/WorldCat encompasses roughly 100+ works in 200+ publications in 7 languages and 1,500+ library holdings.