Section four provides additional insights into Donald A.B. Lindberg M.D.’s life, character, interests, and passions. It includes 20 memoirs, a few of his photographs, a Resource Guide, and an essay about the influence of his home library and leadership traits. Section four’s 20 memoirs are brief, more colloquial, and sometimes personal. The memoirs discuss Dr. Lindberg’s interactions with family, lifelong friends, biomedical informatics colleagues, and U.S. National Library of Medicine (NLM) peers. The Resource Guide, photos, and essay yield other insights and assist readers who wish to learn more about Dr. Lindberg.