Update: Sunday's blood drive has no more open slots. People may still sign up to be a bone marrow donor.

Hosted at Boys & Girls Club, the effort is led by Ballard resident Sean Cryan, who is fighting Myelodysplastic Syndrome, a bone marrow cancer. Cryan has already found a donor, but wants to encourage people to donate blood and sign up to donate bone marrow, especially for minority and mixed races.

"There is always a need for possible stem cell donors, but there is an urgent need for donors from minority and mixed races," Cryan wrote in an email. "We are trying to approach the day when everyone needing a transplant is able to find a match – currently that is hardest for minorities, and we’d like to grow that part of the donor list as well."

No advanced sign-up is necessary to get on the bone marrow donor roll. Prospective donors only need to fill out a questionnaire and get a cheek swab. Donors must be between the ages of 16 and 80.

The drive will take place at the Ballard Boys and Girls Club, 9 a.m.-3 p.m. and will be closed 11-11:45 a.m.

The Seattle Times has a full story.