Make your check out to National Braille Press and mail it, along with a short note stating the purpose of your gift (e.g. donation in the memory of Lindsay Russell), to the following address:
Tanya Holton
National Braille Press
88 St. Stephen Street
Boston, MA 02115
Phone: (617) 266-6160 x15
Toll-free: (888) 965-8965 x15
More information on National Braille Press can be found here.