Sanbaku INAMURA was introduced to Tsuneemon ISHII who was compiling the Dutch-Japanese Dictionary continuing the will of the deceased Zenzaburo NISH, a Dutch interpreter in Nagasaki, and tackled the business of compilation of the Dutch-Japanese Dictionary in a manner of translating the 'Dictionary of the Dutch and French Languages' complied by French Francois Halma (published in 1729) into Japanese.
稲村三伯は、長崎通詞で西善三郎の遺志を継いで編纂事業に当たっていた石井恒右衛門を紹介され、フランス人フランソワ・ハルマ(FrançoisHalma)の「蘭仏辞書」（1729年）の日本語訳を作る要領で蘭日辞典編纂に取り組んだ。