"I'd be quite happy to allow Wikipedia to use my photos of mathematicians, and to agree to the GFDL!" Letter on file with Wikimedia Foundation 2008-04-24 from copyright holder George M. Bergman.
George M. Bergman has released all of his photographs on the Oberwolfach Photo Collection under the license below.
Please be aware that any photograph credited to George M. Bergman that is dated before 1968 may be misattributed and should not be uploaded to Commons with this license.
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The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2008042410024381.
{{Information |Description={{en|1=Graeme Segal}} |Source=http://owpdb.mfo.de/detail?photoID=5947 |Author=George M. Bergman |Date=1982 |Permission= |other_versions= }} "I'd be quite happy to allow Wikipedia to use my photos of mathematicians, and to agree