Seiko Fujita (藤田 西湖, 10 February 1898 – 4 January 1966) was a prominent and highly respected member of Japan's martial arts community. An authority on Kobudō, the classical martial arts of Japan & the Ryukyu Islands, Fujita inherited Wada-ha Kōga-ryū Ninjutsu from his grandfather. Academically, he graduated from Nihon University in the department of Religious Studies. From 1922 onwards, Fujita was called upon to lecture at military academies across the country and was program director for ninjutsu studies at the Imperial Army Intelligence Academy (Nakano School / 陸軍中野学校). He compiled a library, the largest of its kind in private hands (now bequeathed to the Odawara City Library), and authored numerous books & instructional manuals.
Source: “Seiko Fujita”, English Wikipedia (CC BY-SA 4.0), excerpt