According to 'The History of Nagoya City, Personnel 2' published in 1934 (No.78), his descendant Shichidayu Kazukiyo learned Naganuma-ryu heigaku (the military science of Naganuma School) and had about a thousand desciples.
その子孫七大夫和清は長沼流兵学を修めて「前後千を以て数ふ」門弟がいたとの記述が昭和9年版「名古屋市史」人物編2（復刻78項）にある。