Union appears to have sunk in 1869, been salvaged, and then dismantled, with the machinery going to a new steamer then being built for service on the Umpqua River.

James D. Miller bought Unio from Captain Apperson in December 1861, after he had returned from work on mines along the Snake River.

[8] On Friday, October 3, 1862, Union was the first boat of the season to arrive at Salem, coming down river from Oregon City.

[9] Except for a short time in 1862, when he served as commander on the Mountain Buck and the Julia, Captain Miller operated the Union until 1865 when he sold it to the Willamette Steam Navigation Company, of which J.T.

[13][14][15] Nicholas Haun (also seen spelled Hann, Hahn, and Horn), formerly of the Willamette Steam Navigation Company, was an owner of the new steamer.

[13] Swan, a similar sized sternwheeler, was built by Hiram Doncaster (b.1838) across the Umpqua river from Gardiner, Oregon.

[14] With Haun in command, Swan became the first and only steamboat to reach Roseburg, Oregon on the Umpqua river, a journey of 100 miles which took 11 days.