Red Cross

When the nation's fourth blood bank opened in Memphis in 1938, blood transfusions were still a new technology. Patients were connected by tubes directly to donors with the proper blood type, and many patients died before a suitable donor could be found.

Memphis physician Lemuel Diggs and the staff of the Memphis Blood Bank helped solve this tragic problem by developing a system for refrigerated blood storage, as well as methods for collection, filtration, and the typing of blood.