From Erica Murray's blog:

Wednesday, April 2, 11:00 - 4:00
MEDFORD, MA
Fletcher School of Law & Diplomacy, Tufts Campus
160 Packard Avenue, Cabot Basement (Under the Hall of Flags)

Friday, April 4, 10:00 - 3:00
SAN FRANCISCO, CA
Hall of Justice, 850 Bryant St, Room 512 (adjacent to the Police Commission Hearing Room)

Erica has also made a YouTube video about her search. Have a look:

Labels: bone marrow drives, Massachusetts, personal appeal, US