He was helping Seibolt in translating Japanese manuscripts and in research.He had a private practice, taking delight in treating the
poor free. Later was private physician to the Lord of Uwajima Clan.
Keisaku Ninomiya was born in Ehime Prefecture.
Studies medicine under Seibolt, a German doctor at Nagasaki.
Keisaku Ninomiya was involved in some scandal and was imprisoned for several months. After his release returned home to Uwajima and began a private practice, treating the poor free (1838). Was private physician to the Lord of Uwajima Clan (1855).