In 1972, the chief and members of the village council of Kozu-shima Village buried the soil of the then-believed Ota's tomb of Kozu-shima Island, in Mt. Jeoldusan in Korea, a place of martyrdom for the Catholic, and erected a stone monument there.
1972年韓国のカトリック殉教地の切頭山に神津島の村長と村議会議員らが、おたあの墓の土を埋葬し、石碑を建てた。