SS Canadian Mariner
1920 freighter ship

SS Canadian Mariner was a freighter built by Halifax Shipyards Ltd in 1920. She was the first steel ship built in Halifax and was used as a general cargo ship until she was sunk in the Pacific in 1942.
Early life
The Canadian government commissioned the building of 63 ships in 1918 in an effort to start a crown funded shipping company, Canadian Government Merchant Marine Ltd. Canadian Mariner was built as the result of the two contracts awarded to Halifax Shipyards Ltd by the Canadian Government. The other contract was for her sister ship, SS Canadian Explorer.
Transfer history
In 1928 management of Canadian Mariner was transferred from the failed Canadian Government Merchant Marine Ltd to Canadian National Steamship Company, which she steamed under until 1933 when she was eventually sold to Dairen Kisen KK of Japan to be used as a general cargo and supply vessel for the Japanese occupied Pacific Islands under the name Choyo Maru.
This brief starts where responsible research should: with the source description of “SS Canadian Mariner” as 1920 freighter ship. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as 1920 freighter ship. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Dec 12, 2025. The linked authority identifier is Q16951086. Authority coordinates are 24.767, 120.667. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1920, 1942, 1918 and 1928.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “SS Canadian Mariner”, its source revision and the description used here.
- Expand the search: follow SS Canadian Mariner primary sources, SS Canadian Mariner archive and Canadian research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “SS Canadian Mariner”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “SS Canadian Mariner” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.