Former Provisions of the Constitution of the State of Ohio, 1851 Former Art. XI, § 7

The state is hereby divided into thirty-three senatorial districts, as follows:  The county of Hamilton shall constitute the first senatorial district;  the counties of Butler and Warren, the second;  Montgomery and Preble, the third;  Clermont and Brown, the fourth;  Greene, Clinton and Fayette, the fifth;  Ross and Highland, the sixth;  Adams, Pike, Scioto and Jackson, the seventh;  Lawrence, Gallia, Meigs and Vinton, the eighth;  Athens, Hocking and Fairfield, the ninth;  Franklin, and Pickaway, the tenth;  Clarke, Champaign and Madison, the eleventh;  Miami, Darke and Shelby, the twelfth;  Logan, Union, Marion and Hardin, the thirteenth;  Washington and Morgan, the fourteenth;  Muskingum and Perry, the fifteenth;  Delaware and Licking, the sixteenth;  Knox and Morrow, the seventeenth;  Coshocton and Tuscarawas, the eighteenth;  Guernsey and Monroe, the nineteenth;  Belmont and Harrison, the twentieth;  Carroll and Stark, the twenty-first;  Jefferson and Columbiana, the twenty-second;  Trumbull and Mahoning, the twenty-third;  Ashtabula, Lake and Geauga, the twenty-fourth;  Cuyahoga, the twenty-fifth;  Portage and Summit, the twenty-sixth;  Medina and Lorain, the twenty-seventh;  Wayne and Holmes, the twenty-eighth;  Ashland and Richland, the twenty-ninth;  Huron, Erie, Sandusky and Ottawa, the thirtieth;  Seneca, Crawford and Wyandot, the thirty-first;  Mercer, Auglaize, Allen, Van Wert, Paulding, Defiance and Williams, the thirty-second;  and Hancock, Wood, Lucas, Fulton, Henry and Putnam, the thirty-third:  For the first decennial period, after the adoption of this constitution, each of said district shall be entitled to one senator, except the first district, which shall be entitled to three senators.