 On June 24, 1923, Adeniyi-Jones, Eric Moore and Egerton Shyngle joined Herbert Macaulay and Thomas Jackson to form the Nigerian National Democratic Party, also known as NNDP.The party capitalised on an initiative to allow elective representation into the legislative council and contested the three seats allowed Africans in Lagos.Adeniyi-Jones won a seat into the council in 1923 and served in the council for about fifteen years.