en.wikipedia.org/wiki/John_Doe

"John Doe" and "Jane Doe" (for females) are multiple-use names that are used when the true name of a person is unknown or is being intentionally concealed.

mentalfloss.com/article/29996/why-are-unidentified-people-called-john-or-jane-doe

The John Doe custom was born out of a strange and long since vanished British legal process called an action of ejectment. Under old English common law, the ...

www.quora.com/How-did-the-names-John-Jane-Doe-become-placeholders-for-unknown-and-unidentified-persons

Nov 28, 2011 ... The "John Doe" custom dates back to the reign of England's King Edward III, during the legal debate over something called the Acts of Ejectment. This debate  ...

www.dictionary.com/browse/john-doe

If female, Jane Doe, Jane Roe. Replaced earlier John-a-nokes (1530s) or Jack Nokes, who usually was paired with John-a-stiles or Tom Stiles. Also used of ...

legal-dictionary.thefreedictionary.com/John+Doe+or+Jane+Doe

Definition of John Doe or Jane Doe in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is John Doe or Jane Doe? Meaning of  ...

www.worldwidewords.org/qa/qa-joh2.htm

Mar 15, 2003 ... Q From Kevin Webster: I have spent two hours searching the Net for information about the expressions John Doe and Jane Doe that American ...

english.stackexchange.com/questions/33866/john-doe-jane-doe-why-are-they-used-many-times

John Doe is very generic, rolls off the tongue, and in colloquy is not easily mistaken for a known person, like "John Smith" might be (there was ...

blog.roblox.com/2017/03/real-backstory-john-doe-jane-doe-myths

Mar 21, 2017 ... For many years, there has been lore circulating around John Doe and Jane Doe within the community. This year, we've decided that it's time to ...

www.nytimes.com/1995/06/04/magazine/on-language-who-s-john-doe.html

Jun 4, 1995 ... The "average woman" substitutes Jane for Joe or John, but we do not ... It's unlikely that the origin is in a real person named John Doe, but the ...