Several serial and standalone German publications on architecture and architects. Some publications likely belonged to King's mother, Gudrun Horn (Stelzer), who was studying architecture when she met King's father, Gerhard Stelzer. She resumed her studies in the late 1940s after divorcing Stelzer, at which time she reverted to her maiden name, Horn. [Source: Dorothee Stelzer King's family history, Box 1, Folder 3, Dorothee Stelzer King Architectural Collection, Ms2013-023]