It is told that, at that time, Uchiyama was one of the persons who found Heihachiro OSHIO and his son hiding in the house of Gorobe MIYOSHIYA and surrounded them.
この際に内山は美吉屋五郎兵衛方に潜伏していた大塩平八郎父子を発見、包囲した1人であると伝えられる。