Appendix B — Opening of Navigation at St. Paul, 1844-1862
| Year | First Boat | Date | River Closed | Length of Season (No. of Days) | No. of Boats | Total No. of Arrivals |
| 1844 | Otter | April 6 | November 23 | 231 | 6 | 41 |
| 1845 | Otter | April 6 | November 23 | 234 | 7 | 48 |
| 1846 | Lynx | March 31 | December 5 | 245 | 9 | 24 |
| 1847 | Cora | April 7 | November 29 | 236 | 7 | 47 |
| 1848 | Senator | April 7 | December 4 | 241 | 6 | 63 |
| 1849 | Highland Mary | April 9 | December 7 | 242 | 8 | 85 |
| 1850 | Highland Mary | April 19 | December 4 | 229 | 9 | 104 |
| 1851 | Nominee | April 4 | November 8 | 218 | 10 | 119 |
| 1852 | Nominee | April 16 | November 18 | 216 | 6 | 171 |
| 1853 | West Newton | April 11 | November 30 | 233 | 17 | 235 |
| 1854 | Nominee | April 8 | November 27 | 223 | 23 | 310 |
| 1855 | War Eagle | April 17 | November 20 | 217 | 68 | 536 |
| 1856 | Lady Franklin | April 18 | November 10 | 212 | 79 | 759 |
| 1857 | Galena | May 1 | November 14 | 198 | 99 | 965 |
| 1858 | Grey Eagle | March 25 | November 15 | 236 | 62 | 1090 |
| 1859 | Key City | March 19 | November 27 | 222 | 54 | 802 |
| 1860 | Milwaukee | March 28 | November 23 | 240 | 45 | 776 |
| 1861 | Ocean Wave | March 8 | November 26 | 203 | 32 | 977 |
| 1862 | Keokuk | March 18 | November 15 | 212 | 18 | 846 |