The Nelson-DeLuz House was built around 1905 at the corner of South 11th and William Streets. A neo-classic bungalow with ship lap siding, it is in a style made popular by the local architectural firm of Wolfe and McKenzie. The classic features include the porch pillars and capitals, dentils at roof and windows, and decorative corbels and plaster ornaments at some of the windows and pediments. The gabled roof is a feature of the bungalow style.
It was donated to History Park in 1986 by Kristena Nelson De Luz. Her parents, Etta and John Nelson, purchased the home in 1919 when they moved from San Francisco to San Jose with their four children. Kristena attended San Jose High School and San Jose State College, and served as a dietitian during World War II. She married Lawrence De Luz in 1946, and they returned to San Jose to live in the family home on 11th Street.
Kristena was a longtime volunteer with the San José History Museum, and was especially interested in textiles. After its arrival in History Park, her home was used by the museum to exhibit its textile collection from 1993 to 1999.