If these were previously unpublished works then the copyright would begin now and be held by the owner of the property. Unless Adams registered them at the time and renewed them 26 years later, they are either in the PD (if published) or they start anew if he did not. The only fight there would be would revolve around publishing status. Present day copyright law does not extend back before about 1964. No copyright then = no copyright at all, unless unpublished until now. Question: how do they know they are really Adams? Many, many people took pics of the Sierra back then-- and most of them looked all alike. Before Adams came up with his late 20s Half-Dome filter/underexposure accident you can't tell the difference. He talks about that in his autobio-- it was a big day for him when he did that. And his earlier photos were considerably pictorial/poetic-y. Like everybody else' s, too... In a message dated 7/27/2010 6:14:39 P.M. Pacific Daylight Time, jeandavid8@xxxxxxxxxxx writes: Now in the case of Ansel Adams's photographs, I do not know when he started copyrighting them. I believe his portfolios were copyright. I have a print of Moonrise over Moonrise and Halfdome that I bought from him in 1974 and I do not believe it is marked copyright. I bought the print, not the negative, so even were I to copy it, it would be inferior in technical quality from the original. Copyright changes from time-to-time. Sometimes it has been necessary to send a copy of the copyrighted work to the U.S.Government (I forget where) with a form to obtain copyright. Other times (including now, I believe) the other obtains copyright the instant the work is created, although more protection is available if copies are sent to the government.