When he was summoned to the central government which decided to transfer him to the Ministry of Industry, he recommended his younger brother Takatoshi IWAMURA as his successor for the governor of Saga Prefecture and the national government approved it.
中央に召還され工部省出仕となることが決まると後任の佐賀県権令に弟の岩村高俊を推挙し、これが許される。