Digital BW, The Print

>
> Yep.  I am making a new exhibit for my office of these prints, 
instead of my
> own stuff. If anyone asks about the prints and really relates to 
one, I will
> explain the origin and give them one.  I will never sell one.  


However, many entities do (not necessarily Evans' work - it's not 
like there's a clamouring market for it...).

Wire agencies re-distribute DoD photographs for a fee - you can go to 
the source for free, but that's an inconvenience for many of their 
clients. Many artwork reproductions for works that are out of 
copyright - even if held by a particular museum - are sold for profit 
(including by the institutions themselves). Plenty of old - out of 
copyright - photographic works - local history, civil war etc are 
sold as prints and postcards. 

Getty images and Corbis have huge amounts of such work (photographs 
from historic archives and art images) in their archives for sale. 
Yes, you could possibly find it for free somewhere, but essentially, 
the buyer is paying for the convenience.

that's one of the things about copyright - it's limited - 
essentially, once it's gone - well, it's gone (either by expiring, or 
by work being some form of Public Domain). The creators right to 
control copying of the work has ended.