Here's a list of carpools for MSR (in each group, the first person is the driver):
William Stein Michael Abshoff David Perkinson Bill Hart
Robert Bradshaw Craig Citro Mike Hansen
David Joyner Pho Duc Tai Fredrik Johansson Carl Witty
Rob Beezer Emily Kirkman David Roe Kiran Kedlaya
Dan Shumow
Tom Boothby Robert Miller (probably, may take alternate ride)
Bus: Marshall Hampton