The Blackhawk library (or at least parts of it) are currently distributed by:
Preservation Associates (Blackhawk film library; silent film - 16mm)
Box 71
Hat Creek, CA 96040
For short description see:
http://www.cinemaweb.com/silentfilm/16sales.htm
Good luck...
Gary Handman
Director
Media Resources Center
Moffitt Library
UC Berkeley, CA 94720-6000
510-643-8566
ghandman@library.berkeley.edu