| Case Name | Citation ▲ | Year | Distance from slave case(s) | Law Type | Jurisdiction |
|---|---|---|---|---|---|
| Chicago, Rock Island & Pacific Railway Co. v. Harmon | 12 Ill. App. 54 | 1882 | 1 | Illinois | |
| Gauler v. Wohlers | 12 Ill. App. 594 | 1883 | 1 | Illinois | |
| Patterson v. Crawford | 12 Ind. 241 | 1859 | 1 | Indiana | |
| Holloway v. Sherman | 12 Iowa 282 | 1861 | 1 | Iowa | |
| Nicholls v. Skeel | 12 Iowa 300 | 1861 | 1 | Iowa | |
| Garth v. Cooper & Smith | 12 Iowa 364 | 1861 | 1 | Iowa | |
| Stout v. City Fire Insurance Co. of New Haven | 12 Iowa 371 | 1861 | 1 | Iowa | |
| Cook v. Husted | 12 Johns. 188 | 1815 | 0 | Recovery for services of slave | SC of New York |
| Smith v. Shaw | 12 Johns. 257 | 1815 | 1 | New York | |
| Clason v. Shotwell | 12 Johns. 31 | 1814 | 1 | New York | |
| Concklin v. Havens | 12 Johns. 314 | 1815 | 0 | Will & Trust | SC of New York |
| Vosburgh v. Thayer | 12 Johns. 461 | 1815 | 1 | New York | |
| Ray v. Brenner | 12 Kan. 106 | 1873 | 1 | Kansas | |
| Hudson v. Commissioners of Atchison Co. | 12 Kan. 140 | 1873 | 1 | Kansas | |
| Sumner v. Cook | 12 Kan. 166 | 1873 | 1 | Kansas | |
| Redmond v. State | 12 Kan. 172 | 1873 | 1 | Kansas | |
| In re Peyton | 12 Kan. 399 | 1874 | 1 | Kansas | |
| Perry v. Bailey | 12 Kan. 540 | 1874 | 1 | Kansas | |
| Forstall & Co. v. Blanchard | 12 La. 1 | 1838 | 0 | Sales, sequestration, suretyship, capacity, property, community property, debts, contracts | Louisiana |
| Henderson v. Bryan | 12 La. 10 | 1838 | 0 | Promissory notes, sales, redhibition, sales, damages | Louisiana |