Former Provisions of the Constitution of the State of Ohio, 1851 Former Art. II, § 2

Representatives shall be elected biennially by the electors of the respective house of representatives districts;  their term of office shall commence on the first day of January next thereafter and continue two years.

Senators shall be elected by the electors of the respective senate districts;  their terms of office shall commence on the first day of January next after their election.  All terms of senators which commence on the first day of January, 1969 shall be four years, and all terms which commence on the first day of January, 1971 shall be four years.  Thereafter, except for the filling of vacancies for unexpired terms, senators shall be elected to and hold office for terms of four years.