Oguri Mankyō Den names three brothers and sisters besides Oguri Mankyō: Ei, the second son; Shige, the eldest daughter; and Hōzō, the third son. All are set down as children of Oguri Kōzukenosuke Tadamasa and the concubine Uta.
Shige — married to Miura Yoshitaka, of samurai family
Shige was born on the twenty-fourth day of the first month of 1866. She was three at the time of her father's execution, and is said to have escaped harm hidden with her mother at a temple called Rengein in the village of Mizunuma.
She later married a man of samurai family called Miura Yoshitaka. All the book writes is the one line: “married to Miura Yoshitaka, of samurai family”.
This man's career can be followed in the records of appointment and the pension papers in the Imperial Household Archives. Of samurai family of Tokyo prefecture, born in the seventh month of 1854. From 1885 to 1886 he was a ninth-grade official of the commerce bureau of the ministry of agriculture and commerce, and later, as an official of the imperial estates bureau of the Imperial Household Ministry, lived within the imperial estate at Naitō Shinjuku — the present Shinjuku Gyoen. He received the seventh order of merit in 1893, retired from office in 1897, and died in 1898. The original domicile given in his pension application is 1-3 Kakigara-chō, Nihonbashi ward, Tokyo.
So a woman handed down as the daughter of a man who was beheaded was living on an imperial estate, as the wife of a man in the service of the Imperial Household Ministry.
Hōzō — successor to the Ichikawa house
Hōzō was born on the fifteenth day of the tenth month of 1868, the year his father was cut down. The book records him as “head of the Ichikawa house”.
The Ichikawa were the family at Kumegawa in Musashi province — now Higashimurayama in Tokyo — into which Uta, handed down as the mother, married. Uta lies at Baiganji in Higashimurayama. The date of her death is 24 November 1912.
Ei
Of Ei the book sets down only “second son, Ei” in the genealogy on page four; nothing more is written.
Read alongside
Oguri Mankyō — the priest said to be a concubine's son
The eldest brother of the three. Fifteenth abbot of Tōzenji, later the twenty-fifth of Zentōin.
The genealogy in Oguri Mankyō Den
The four brothers and sisters, and down to Mankyō's children. Taken from pages four and five of the book.
Did Oguri Kōzukenosuke have a concubine?
The “Oaya” of the household accounts, and the “Outa” seen at the village of Gonda. Ōtsubo Motoji and Sakamoto Fujiyoshi read them differently.
Sources: Koyama Tadashi, Oguri Mankyō Den (a life of Oguri Mankyō), facsimile edition; records of appointment and pension papers held by the Imperial Household Archives; Meiji-era staff registers, Nihon Shinshiroku (the Japanese gentleman's directory), third edition, and others, in the National Diet Library Digital Collections; the Ichikawa family's grave inscriptions at Baiganji