The number of babies whose health was protected by James Harrison. The Australian railway clerk had rare antibodies in his blood that, when administered during pregnancy, help prevent hemolytic disease of the newborn, a condition that can cause stillbirth and neonatal death. Harrison, who died last month, donated blood every two weeks for more than 60 years. “There are so many people walking around with a little bit of James,” said a spokeswoman for American Red Cross Lifeblood.