Abstract The Barney B. Clark papers (1910-1984) provide information on the development of the Jarvik-7 artificial heart, the implantation of this heart into a human being, and on Barney Bailey Clark, the first authorized recipient of this artificial heart. The bulk of the collection consists of materials related to the writing of a story about Barney Clark and the artificial heart by Earl and Miriam Selby. Also included are materials collected by Una Loy Clark, Barney Clark's wife, including a history...