KENNETT SQUARE — Every three minutes in the United States someone is diagnosed with blood cancer, according to Delete Blood Cancer, DKMS. A bone marrow transplant is the best chance of survival; however 70% of those diagnosed must look outside of their families for a donor. The Kennett YMCA, in partnership with Delete Blood Cancer – DKMS, is hosting a donor registry drive on March 12, from 9 a.m....