| Case Name ▲ | Citation | Year | Distance from slave case(s) | Law Type | Jurisdiction |
|---|---|---|---|---|---|
| McKinstry v. Dewey | 192 Iowa 753 | 1921 | 1 | Iowa | |
| McLenan v. Sullivan | 13 Iowa 521 | 1862 | 1 | Iowa | |
| McManus v. Carmichael | 3 Iowa 1 | 1856 | 1 | Iowa | |
| Mcnamee v. Moreland | 26 Iowa 96 | 1868 | 1 | Iowa | |
| Metcalf v. Kent | 104 Iowa 487 | 1898 | 1 | Iowa | |
| Meyers v. C., R. I. & P. R. | 57 Iowa 555 | 1881 | 1 | Iowa | |
| Meyer v. Stortenbecker | 184 Iowa 441 | 1917 | 1 | Iowa | |
| Meyer v. Weiler | 121 Iowa 51 | 1903 | 1 | Iowa | |
| Mickel v. Walraven | 92 Iowa 423 | 1894 | 1 | Iowa | |
| Mileham v. Montagne | 148 Iowa 476 | 1910 | 1 | Iowa | |
| Miller v. Chittenden | 2 Iowa 315 | 1856 | 1 | Iowa | |
| Miller v. Dayton | 57 Iowa 423 | 1881 | 1 | Iowa | |
| Miller v. Hill | 238 Iowa 344 | 1947 | 1 | Iowa | |
| Milner v. Brokhausen | 153 Iowa 560 | 1912 | 1 | Iowa | |
| Moench v. Hower | 137 Iowa 621 | 1908 | 1 | Iowa | |
| Mohn v. Mohn | 148 Iowa 288 | 1910 | 1 | Iowa | |
| Montgomery v. Sutton | 58 Iowa 697 | 1882 | 1 | Iowa | |
| Moore v. McKinley | 246 Iowa 734 | 1955 | 1 | Iowa | |
| Moore v. Pierson | 6 Iowa 279 | 1858 | 1 | Iowa | |
| Morrison v. Myers | 11 Iowa 538 | 1861 | 1 | Iowa |