THANK YOU for the article on Copyrights.  The question has occurred to me
concerning in my research.  Example:  My late mother's cousin was a poet and
lyricist.  I have a copy of sheet music she gave to my mother long ago.  Its
copyright was in 1922.    In this particular case, her daughter gave me
permission to reprint the sheet music; so I am feeling okay about it.  The dau
also sent me a copy of the (expired) copyright.  
    Another question that has come up (I haven't finished reading your
information yet; so you may already have answered this one):  I have portraits
From the 1940s and '50s, in studio folders.  I assume that no portrait studio
is looking in genealogy books for subjects for their lawyers -   Will read
your information more fully now, and may even go to a library!  
    Thanks again for sending this material.    Norma