Regarding the purge and confusion in the Mito Domain after the Tenguto no Ran until the 'battle of Kodokan school' are detained in "Oboegaki Bakumatsu no Mito Han" (Memorandum - The Mito Domain during the end of Edo period).
乱後～いわゆる「弘道館戦争」に至るまでの水戸藩における粛清と混乱に関しては、山川菊栄『覚書幕末の水戸藩』にくわしい。