Iowa: In operation for 1842 season, after which was condemned.
Unnamed oar-powered boat: 1842-1845
Unnamed horse-powered boat 1845-1852
Apex: 1852-1855
Muscatine: 1855-1858.
Decalion: 1858- February 16, 1868, when it sank.
Northern Illinois: In service from the spring of 1868, until May, 1874, when it was sold.
Ida May: May 24, 1875-May 16, 1891.