To who it might concern:

In the age when English pronouns are undergoing reform, let's dispose of another one whom. This object pronoun is archaic and pretentious.  Parting is such sweet sorrow, but it's lived its life, and its time has come to say goodbye.

For Who the Bell Tolls rolls off the tongue just fine. 

PS

The image of the pictured book and the book itself belong to the copyright holders, who are not affiliated with this cause—unless they choose to be, in which case, welcome.