| Case Name ▲ | Citation | Year | Distance from slave case(s) | Law Type | Jurisdiction |
|---|---|---|---|---|---|
| Manuel v. Manuel | 13 Ohio St. 458 | 1862 | 1 | Ohio | |
| Martin v. Clinton Bank | 14 Ohio 199 | 1846 | 1 | Ohio | |
| Martin v. Eaton | 25 Ohio C.C. Dec. 160 | 1912 | 1 | Ohio | |
| Martin v. Gunnison | 14 Ohio C.C. Dec. 679 | 1902 | 1 | Ohio | |
| Martin v. Spurrier | 13 Ohio C.C. Dec. 110 | 1901 | 1 | Ohio | |
| Marts v. State | 26 Ohio St. 162 | 1875 | 1 | Ohio | |
| Mason v. Hull | 55 Ohio St. 256 | 1896 | 1 | Ohio | |
| Massey v. Stimmel | 5 Ohio N.P. 29 | 1897 | 1 | Ohio | |
| Mathews v. Krisher | 59 Ohio St. 562 | 1899 | 1 | Ohio | |
| Mayhugh v. Rosenthal | 1 Cin. Sup. Ct. Rep. 492 | 1871 | 1 | Ohio | |
| McAfferty v. Conover's Lessee | 7 Ohio St. 99 | 1857 | 1 | Ohio | |
| McArthur v. Porter | 1 Ohio 99 | 1823 | 1 | Ohio | |
| McBain v. McBain | 15 Ohio St. 337 | 1864 | 1 | Ohio | |
| McCarthy v. Hansel | 25 Ohio C.C. (n.s.) 283 | 1915 | 1 | Ohio | |
| McCarthy v. Hansel | 4 Ohio App. 425 | 1915 | 1 | Ohio | |
| McClellan v. Filson | 44 Ohio St. 184 | 1886 | 1 | Ohio | |
| McCombs v. State | 8 Ohio St. 643 | 1858 | 1 | Ohio | |
| McDaniel v. Hays | 6 Ohio Nisi Prius (n.s.) 435 | 1905 | 1 | Ohio | |
| McDowell v. Sapp | 39 Ohio St. 558 | 1883 | 1 | Ohio | |
| McNicoll v. Ives | 3 Ohio N.P. 6 | 1895 | 1 | Ohio |