| Navy | The US Navy |
| Type | Submarine tender |
| Class | [No specific class] |
| Pennant | AS 9 |
| Built by | New York Shipbuilding Corp. (Camden, New Jersey, U.S.A.) |
| Ordered | |
| Laid down | 7 Mar 1918 |
| Launched | 19 Dec 1918 |
| Commissioned | 24 Jan 1922 |
| Lost | 10 Apr 1942 |
| History | Displacement: 5975 BRT Acquired by the USN for conversion to a submarine tender on 22 November 1921 |
Commands listed for USS Canopus (AS 9)
Please note that we're still working on this section
and that we only list Commanding Officers for the duration of the Second World War.
| Commander | From | To | |
| 1 | Lt.Cdr. Philip Raymond Kinney, USN | mid 1939 | Feb 1940 |
| 2 | Cdr. Earl LeRoy Sackett, USN | Feb 1940 | 10 Apr 1942 |
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