Under the old constitution, the State, as already mentioned, was divided into judicial circuits, which were increased and changed from time to time, as necessity and the growing population demanded. The territory composing Madison County was then a portion of Franklin, and belonged, of course, to whatever circuit the latter county formed a portion of. It will therefore be proper to give the organization of the circuits into which this county was thrown from 1803 until 1852. In 1803, the Second Circuit was composed of Adams, Scioto, Ross, Franklin, Fairfield and Gallia Counties, to which Muskingum was added in 1804. In 1808, the State was divided into four circuits, the Second being Adams, Highland, Scioto, Gallia, Ross, Franklin and Delaware Counties. In February, 1810, the counties forming the Second Circuit were Ross, Pickaway, Madison, Fayette, Highland, Clermont, Adams, Scioto and Gallia, The following year the circuit was again changed and comprised the counties of Pickaway, Franklin, Madison, Fayette, Highland, Clermont, Adams, Scioto, Gallia and Ross. On the 27th of February, 1816, the State was divided into six circuits, and this county became a part of the Sixth, viz., Clermont, Clinton, Greene, Champaign, Delaware, Franklin, Madison and Fayette; but in 1817, Clermont was attached to the First Circuit. In January, 1818, the Seventh Circuit was created, leaving the following counties comprising the Sixth, viz., Franklin, Delaware, Madison, Clark, Champaign, Logan and Fayette. In February, 1810, two more circuits were established and Fayette County was thrown into the Second Circuit. Upon the erection of Union County, in 1820, the Sixth Circuit contained Delaware, Franklin, Fairfield, Perry, Pickaway, Madison and Union. Thus it remained for four years, When another change occurred and the following counties composed the Sixth Circuit, viz., Madison, Fayette, Ross, Pickaway, Hocking, Fairfield and Franklin. In 1828, Union was again added to the Sixth and thus this circuit existed until January 24, 1834, when the State was divided into twelve circuits, this county forming a part of the Twelfth, viz., Clark, Madison, Franklin, Delaware, Union, Logan, Hardin, and Champaign. In 1839, the Thirteenth Circuit was created, and in 1840 the Fourteenth and Fifteenth, yet no change was made in the Twelfth. In 1845, the Sixteenth Circuit was created, and Hardin County was put into that circuit and Delaware into the Second. In 1848, the Seventeenth and Eighteenth Circuits were formed; in 1850, the Nineteenth, and in March, 1851, the Twentieth, none of which made any change in the Twelfth, it standing from 1845 to 1852, Clark, Madison, Franklin, Union, Logan and Champaign Counties.