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USS Elf

patrol vessel of the United States Navy

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMar 5, 2026
Entity authorityQ7869100
Source-derived summary

USS Elf (SP-81) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.

Elf was a civilian motorboat completed in early 1917 by Stanley Vansant. In early May 1917, the U.S. Navy acquired her under a free lease from her owner, Louis H. Eisenlohr of Philadelphia, Pennsylvania, for World War I service as a patrol boat. She was commissioned as USS Elf (SP-81) on 3 May 1917.

Elf performed patrol duty in the 4th Naval District until July 1918, when she was transferred to the 7th Naval District.

Elf was decommissioned on 9 January 1919 and returned to her owner on 10 January 1919.

References

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.

Department of the Navy: Naval Historical Center: Online Library of Selected Images: Civilian Ships: Elf (American Motor Boat, 1917).

Editorial summary

Begin with the source’s own compact description: “USS Elf” is patrol vessel of the United States Navy. The dossier treats that line as a proposition to test through patrol, vessel and United, not as a finished interpretation.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1917, 1919, 1918—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, patrol, vessel and United is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “patrol vessel of the United States Navy” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Mar 5, 2026. The linked authority identifier is Q7869100. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1917, 1919 and 1918.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “USS Elf”, its source revision and the description used here.
  2. Expand the search: follow USS Elf primary sources, USS Elf archive and patrol research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “USS Elf”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from USS Elf” 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.