This page contains notes on copyrights and acknowledgments of external contributors
Note: There are considerable changes to the site under way. One of these is reducing the dependency on copyrighted files and increasing transparency, where files originate and under what terms they are used etc.  However because I am one person running the whole thing, it will take a little while. Be patient.

I am not a lawyer. When a particular site such as claims something is “in the public domain” or “free to the public”, I have to take their word for it. If you have a complaint, contact the sites where the files originate. I will provide any information on the origins of any file, should you need it.

The audio used in our stream will , as far as we are able to verify, conform to one or two points:

1   a. It’s public domain in the United States b. It’s creator or author died before 1950/51 and is thus public domain in life +70 countries.

2. We have asked for permission from the copyright holders.

In cases where we have not asked for permission, we will, as far as possible, try to meet both 1a. and 1b. In some cases, the issue will be very complex, and we have done our best to verify the rights. But nobody is perfect. We will remove files that are in dispute without question. In some instances (2), I have asked for special permission from the copyright holders. This material is NOT in the public domain. I will not dispute copyright claims, and will remove the files in question at the earliest opportunity.

But you must contact me by email (historyradioorg(at) to let me know of any claim you might have. And remember, at least, that this is a non-profit site. No profits have been generated. Nor are there any downloads of audio.
List of sources by copyrights licence (preliminary, being updated):

Public Domain
Universal Newsreels
US Army The Big Picture Documentaries
The Public Digital Library of America (search using licence) (search using licence) (search using licence) (search using licence)
Presidential libraries online
The National Library of Norway (public domain audio of Sigrid Undset) eerie music DVD
Youtube audio library free sound effects
Digital history public domain music archive public domain music
Youtube free music library

Creative Commons or open licence:
The Public Digital Library of America (search using licence) (search using licence) (search using licence) (search using licence)
Ottoman history podcast
Knifepoint Horror podcast
MIT open lectures
Yale university open lectures

The site is run and edited by me, Michael Henrik Wynn (born 1973). Other readers you have heard on behalf of, George Snow etc, have been hired online at various sites where they sell their services – and paid.