In a section of Nyorai-ji Temple in Osaki is Okada Yahee’s tombstone. The stone itself was reconstructed years after it was originally made. According to the inscription on the tombstone, Okada Yahee was a vassal of Ikeda Mitsumasa, but in Kan’ei 3 (1626), he came to Osakimura to “make a living boiling the sea,” or, in other words, he came to the area to produce salt. Though the Higashihama Salt Farm’s full-scale development began under Asano Naganao in Shoho 3 (1646), this inscription indicates that the salt farm was being developed bit by bit by the settlers that had arrived before that period.