From: Dictionary of American Naval Fighting Ships

Monitor: t. 614 l. 225' b. 37'

dr. 6'6" dph. 9'1" cpl. 65 a. 1 x 11" sb.

The first Chimo , a light-draft ironclad monitor, was built by Aquila Adams at South Boston, Mass., from plans by John Ericsson; launched 5 May 1864; and commissioned 20 January 1865, Acting Master John C. Dutch in command.

Chimo sailed to New York, arriving 26 January 1865, to be fitted with torpedo gear and one 11-inch Dahlgren smoothbore gun. On 1 April 1865 she departed for Hampton Roads, where she arrived on the 9th. On 28 April she sailed for Point Lookout, N.C., where she served as a station ship until 28 May 1865. Arriving at Washington Navy Yard 7 June 1865, she was decommissioned, 24 June 1865. Her name was changed to Orion 15 June 1869; to Piscataqua 10 August 1869, and she was sold in 1874.

On 24 February 1919 the unfinished Chimo (AT-22) was renamed Tadousac (q. v.)