Probably before 1923, since he is shown as a young man. There is a similar photo of his wife, Eleanor Belknap Humphrey, in the same style and size, and she also looks young.
Source
Original publication: Original publication was probably in one of the Louisville, Ky. newspapers. The photo has the "posterized" look of something no longer printed in half-tones, however.
Immediate source: Personal family tree at Ancestry.com. Original newspaper staff photographer was probably not given photo credit.
Author
black and white family photo from Ancestry.com reproduction
(Life time: September 28, 1875 - February 3, 1927)
If you disagree with my opinion that the photo was first published before 1923, then the photo would probably also qualify as being first published in the USA before 1989 without copyright registration.
Other information
English: Another editor for Wikipedia suggested that I add a photo to the entry at Lewis Craig Humphrey.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Newspaper_editor_Lewis_Craig_Humphrey.png
Licensing
Public domainPublic domainfalsefalse
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File history
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{{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Photo of Lewis Craig Humphrey (1875-1927) as a young man.}} |Source = '''Original publication''': Original publication was probably in one of the L...