64 Baker Street is an independent historical reference project dedicated to the Special Operations Executive (SOE) and the people, organizations, operations, resistance networks, places, equipment, and archival records connected with its work during the Second World War.
Our editorial objective is straightforward: publish useful historical information that is accurate, traceable, clearly presented, and honest about uncertainty.
The history of clandestine organizations requires particular care. SOE personnel used aliases and codenames, operations were deliberately concealed, records were dispersed or destroyed, wartime reports could be incomplete, and post-war recollections sometimes conflict.
For that reason, we do not treat every published claim as equally reliable. Our articles are developed through comparison of available evidence, with preference given to primary records and authoritative historical sources.
Our Editorial Principles
The following principles guide our work.
Accuracy Before Certainty
We aim to establish historical facts as accurately as the available evidence permits.
We do not present speculation as fact simply because a definitive answer would make an article easier to write.
When trustworthy sources disagree, we may explain the disagreement rather than selecting one version without justification.
Statements such as:
- “records indicate,”
- “according to the personnel file,”
- “contemporary reports describe,”
- “later accounts differ,”
- “the exact circumstances remain uncertain,”
may therefore appear throughout the site.
Uncertainty is part of historical research and should be acknowledged rather than concealed.
Source-Based Research
Articles should be based on identifiable evidence.
Whenever practical, we prioritize sources in approximately the following order:
- Primary archival records and contemporary documents
- Official archives, museums, and institutional collections
- Official histories and major scholarly works
- Peer-reviewed academic research
- Established historical reference works
- Well-researched biographies, memoirs, and specialist publications
- Reliable secondary websites used for supplementary research
The order is not absolute. A later scholarly study may correct an error found in a wartime document, while an eyewitness memoir may provide important context unavailable in administrative records.
Sources are evaluated according to what they can reliably establish.
Archival Sources
Archival material is central to this project.
The National Archives holds substantial documentation relating to British intelligence and the Special Operations Executive. Its SOE holdings include personnel files principally catalogued in HS 9, while operational and administrative material appears across other HS series and related government records.
When we use archival material, we aim to record sufficient information for another researcher to identify the source.
The National Archives recommends retaining precise catalogue references because consistent citation allows researchers to locate records, verify claims, and continue earlier research.
Where practical, references on 64 Baker Street may therefore include:
Archive or institution
Collection or series
Catalogue reference
File or item reference
Relevant page, folio, or document where known
For example:
The National Archives (TNA), HS 9/[reference]
We do not invent archival references where one has not been verified.
Archive Catalogue Entries Are Not Always the Record Itself
An archive catalogue description and the document it describes are not necessarily the same source.
A catalogue entry may summarize a file without reproducing its full contents.
Where an article relies only on catalogue information, we try not to imply that the underlying file has been personally inspected.
This distinction is especially important when dealing with records that remain closed, partially catalogued, unavailable online, or accessible only in a physical reading room.
The National Archives notes that some intelligence records remain closed, retained, or unavailable because of their sensitive nature.
Personnel Files
Individual SOE biographies require particular care.
Personnel files may contain materials such as:
- service information;
- training assessments;
- medical reports;
- photographs;
- evaluations of suitability or performance;
- reports concerning an individual’s wartime activities.
The National Archives describes these types of material within its HS 9 SOE personnel holdings.
However, a personnel file should not automatically be treated as an infallible biography.
Wartime documents can contain spelling errors, incorrect dates, incomplete information, assumptions, cover identities, conflicting reports, and information recorded before the outcome of an operation was known.
Whenever possible, important biographical claims are compared with additional evidence.
Primary Sources and Historical Context
Primary sources are invaluable, but they are not automatically neutral or complete.
A wartime report represents what its author knew, believed, recorded, or was prepared to state at a particular moment.
We consider factors such as:
- when the document was written;
- who created it;
- the purpose for which it was created;
- whether the writer witnessed the event;
- whether information was based on another report;
- whether censorship or operational security affected the record;
- whether later evidence contradicts it.
Our goal is not merely to quote documents but to understand what those documents can reasonably establish.
Memoirs and Personal Recollections
Memoirs, interviews, oral histories, and autobiographical accounts can provide detail unavailable in official records.
They can also be affected by memory, perspective, hindsight, personal relationships, secrecy, and the passage of time.
We therefore use memoirs as historical evidence while distinguishing them from contemporary administrative documentation.
A dramatic anecdote repeated in several books does not necessarily become established fact if all versions ultimately derive from the same unverified recollection.
Conflicting Accounts
SOE history contains many disputed events.
When credible sources disagree materially, we may:
- present the principal interpretations;
- identify which sources support each version;
- explain chronological or evidentiary problems;
- indicate which interpretation appears best supported;
- leave the question unresolved when the evidence does not justify a firm conclusion.
We do not manufacture certainty for stylistic convenience.
Names, Codenames, and Aliases
SOE personnel may appear in records under multiple names.
These can include:
- legal names;
- married names;
- maiden names;
- operational aliases;
- field names;
- codenames;
- cover identities;
- transliterated spellings;
- anglicized spellings.
We aim to distinguish these categories whenever the evidence allows.
An alias should not automatically be described as a codename, and a network codename should not automatically be attributed to an individual.
Alternative spellings may be included where they help researchers locate historical records.
Dates and Chronology
Dates are checked carefully because operational histories frequently depend on precise sequences of events.
Where different sources provide conflicting dates, we may give the alternatives and explain which source supports each one.
Approximate dates should remain approximate.
We avoid converting:
“early June 1944”
into:
“June 3, 1944”
unless evidence supports the more precise date.
Numbers, Casualties, and Operational Results
Claims concerning casualties, arrests, executions, sabotage results, resistance strength, aircraft losses, material destroyed, or operational effectiveness can vary considerably among sources.
We avoid false precision.
If contemporary and later estimates differ significantly, an article should explain that difference rather than present an uncertain number as uncontested.
Quotations
Quotations should accurately represent the source.
We do not intentionally alter quotations to strengthen an argument.
Obvious typographical modernization or omitted text may be indicated where necessary, and translations should not be presented as the original wording.
When quoting archival or copyrighted material, we use only what is appropriate for explanation and historical analysis.
Images and Captions
Historical photographs are evidence and require the same care as text.
Whenever possible, image captions should identify:
- the people shown;
- location;
- approximate or exact date;
- photographer or originating organization where known;
- collection or archive;
- rights or licensing information where applicable.
An image should not be described as showing a particular agent, operation, or location merely because it is frequently labelled that way elsewhere online.
Uncertain identifications should be identified as uncertain.
Maps
Historical maps and modern reconstructed maps serve different purposes.
When modern maps are used to illustrate historical operations, we aim to distinguish verified locations from approximate or inferred locations.
Coordinates should not imply unrealistic precision.
A known town, approximate drop zone, undocumented safe house, and precisely identified building should not all be represented as if they have the same level of geographic certainty.
Secondary Sources
Secondary sources help provide context, interpretation, and access to specialized scholarship.
Preference is given to works that:
- identify their sources;
- are written by knowledgeable researchers;
- have reputable editorial or academic oversight;
- distinguish evidence from speculation;
- can be independently checked.
Wikipedia and similar collaborative resources can be useful for discovery and orientation, but they should not ordinarily serve as the sole basis for a significant historical claim when stronger sources are available.
Repeated Claims and Historical Myths
Intelligence history attracts memorable stories.
Some are well documented. Others have been repeated so often that repetition itself can create an impression of certainty.
We do not consider the number of websites repeating a claim to be evidence of its accuracy.
Where possible, we trace significant claims back toward their earliest identifiable source.
Articles may include sections such as:
Common Misconceptions
What the Records Show
Disputed Accounts
or
Evidence and Uncertainty
when these help readers distinguish established history from legend.
Writing and Editorial Style
Articles should be written for interested general readers while remaining useful to researchers.
We favor:
- clear language;
- chronological clarity;
- meaningful headings;
- specific names and dates;
- explanations of specialist terminology;
- direct references to evidence;
- appropriate historical context.
We avoid unnecessary sensationalism.
Terms such as secret agent, spy, saboteur, operative, organizer, courier, and wireless operator are not always interchangeable. Wherever possible, terminology should reflect the actual historical role.
Human Courage Without Mythmaking
Many people associated with SOE demonstrated extraordinary courage and accepted extraordinary risks.
Recognizing that courage does not require turning historical figures into flawless heroes.
Our biographies may discuss:
- mistakes;
- unsuccessful missions;
- interpersonal conflicts;
- political disagreements;
- controversial decisions;
- capture and interrogation;
- operational security failures;
- conflicting assessments of performance.
These matters should be presented with context and evidence, not for sensationalism.
Likewise, people associated with opposing organizations are treated as historical subjects rather than fictional villains.
Sensitive Historical Material
SOE history includes imprisonment, torture, executions, concentration camps, reprisals, assassination, civilian deaths, and other forms of wartime violence.
Such subjects may be necessary to understand what happened.
We aim to describe them accurately without exploiting suffering for dramatic effect.
Graphic detail is included only when it serves a legitimate historical purpose.
Living People and Families
Although the principal events covered by 64 Baker Street occurred during the Second World War, historical research can still affect surviving relatives and living individuals.
We distinguish documented historical evidence from accusation or speculation.
Personal information unrelated to the historical subject is generally excluded.
Where archival restrictions apply, we respect them rather than attempting to infer or reconstruct protected information from unrelated sources.
Independence
64 Baker Street is an independent project.
Citation of an institution does not imply sponsorship, endorsement, partnership, or affiliation.
Unless explicitly stated otherwise, the project is not an official publication of:
- The National Archives;
- Imperial War Museums;
- the Ministry of Defence;
- the British Government;
- any intelligence service;
- any military organization;
- any museum or archive;
- any veterans’ association.
Institution names are used to identify sources and collections.
Commercial Considerations
Advertising, affiliate relationships, sponsorships, or other commercial arrangements should not determine historical conclusions.
Where commercial relationships could reasonably affect how readers interpret content, appropriate disclosure should be provided.
Editorial coverage should not be purchased through undisclosed arrangements.
Artificial Intelligence and Research Tools
Digital tools, including artificial intelligence, may assist with tasks such as:
- organizing notes;
- identifying possible research leads;
- comparing terminology;
- structuring drafts;
- identifying subjects requiring further verification.
They are not treated as historical authorities.
AI-generated facts, quotations, citations, archival references, dates, names, and interpretations should be checked against reliable sources before publication.
This is particularly important for archival references. The National Archives itself advises researchers to verify information supplied by AI and specifically recommends checking AI-generated document references against its catalogue.
An AI-generated citation that cannot be verified is not considered a source.
Originality
Articles published by 64 Baker Street should represent original editorial work.
Historical facts themselves are not proprietary, but the expression and scholarship of other researchers deserve proper attribution.
We do not intentionally reproduce substantial portions of books, websites, archival transcriptions, or other publications without permission or an appropriate legal basis.
When another researcher has made a distinctive interpretation or discovery that materially informs an article, attribution should be provided.
Updating Existing Articles
Historical articles are not necessarily final when first published.
We may update pages when:
- newly opened records become available;
- additional archival references are identified;
- better scholarship is published;
- dates or names are corrected;
- new evidence changes an interpretation;
- citations can be improved;
- significant context was previously missing.
A substantial revision may be noted when appropriate.
Updating an article is considered part of maintaining a reference resource, not an admission that historical research should never change.
Corrections
Accuracy matters more than preserving an earlier version of an article.
When we identify a factual error, we aim to correct it.
Minor errors such as spelling, formatting, or broken links may be corrected without a formal notice.
Material errors involving matters such as:
- identity;
- chronology;
- attribution;
- operational participation;
- archival references;
- quotations;
- casualty figures;
- significant historical interpretation
may warrant a more visible correction or editorial note.
Readers who identify a possible error are encouraged to contact us with the relevant page, the disputed statement, and—where possible—the source supporting the proposed correction.
See our Corrections Policy for further details.
Historical Research Is Cumulative
No single archive, book, database, or website contains the complete history of the Special Operations Executive.
The National Archives itself advises researchers that relevant material may be distributed among different collections and institutions, and that archival research often requires consulting several sources rather than relying on a single search result.
64 Baker Street therefore treats research as cumulative.
An article should provide readers with a reliable account based on the evidence currently available while leaving a clear path for that evidence to be examined, challenged, expanded, or corrected.
Our Commitment
The purpose of this Editorial Policy is not to claim that every page will be perfect.
Historical research rarely offers that luxury.
Instead, it establishes the standard toward which 64 Baker Street works:
Research carefully. Cite evidence. Distinguish fact from interpretation. Acknowledge uncertainty. Correct mistakes. Make the sources easier for the next researcher to find.
That approach is central to our goal of building 64 Baker Street into a useful and trustworthy independent reference to the history of the Special Operations Executive.