AKA: Shelton, George C., House, La Quinta, CA; Lockard, Thomas Swift and Blanche Galbraith Miller, House, La Quinta, CA

Structure Type: built works - dwellings - houses

Designers: Maston, Carl Louis, Architect (firm); Carl Louis Maston (architect)

Dates: constructed 1970-1970

2 stories, total floor area: 3,247 sq. ft.

54775 Avenida Alvarado
La Quinta, CA 92253

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Well-known Los Angeles Modernist architect Carl Louis Maston completed this 1970 residence for his sister, Cathryn Mastopietro, a teacher and counselor in Coachella Valley Schools.

Building History

The Los Angeles Modernist Carl Louis Maston (1915-1992) designed this two-story, stucco-faced residence in La Quinta, CA, for his sister, Cathryn Mastopietro Hughes (born 05/25/1921 in Jacksonville, IL-d. 05/29/1977 in Palm Desert, CA). She attended Fairfax High School in Los Angeles and UCLA, before serving in the US Navy's WAVES during World War II. Following the war, Mastopietro became a teacher in two Coachella Valley schools, the Thomas Jefferson Junior High School and Indio High School. In her last two years, she worked as a counselor at Indio High.

In 1949, Cathryn married Donald Hughes from whom she later divorced. She died of cancer in 05/1977. In her honor, a memorial scholarship was established at Indio High School. (See "Obituaries: Hughes," Palm Desert Post, 06/09/1977, p. 4.)

This house was begun in 05/1970 and completed by the end of the year, 11/1970. She lived in La Quinta, CA, for the last twenty-eight years of her life, the last seven in this house. After her death, the house was obtained by George C. Shelton on 03/24/1989. The Great Western Bank repossessed the house from Shelton on 08/26/1996. Thomas Swift Lockard, Jr., (1924-2009) and his wife Blanche Miller Lockard (born 09/12/1931) purchased the residence from the bank on 11/27/1996.

Building Notes

According to the original building permit of 06/15/1970, the house had an original valuation of $24,114.

Like Carl Maston's own house, this residence for his sister featured a small pond. (Thank you to Kate Lockard for furnishing much of the information in this record about the house of her parents. See emails to the author of 04/11/2022.)


The Lockards enlarged the house during their time of ownership. In 2022, the house had 3,247 square feet, hree bedrooms and three-and-a-half baths and occupied a large lot.

PCAD id: 24470