author
Created by the nonprofit group that helped champion and fund the memorial, this credited author represents the civic effort behind one of South Dakota’s best-known landmarks. Its book offers a concise, public-minded account of how Mount Rushmore was imagined, financed, and built.

by Mount Rushmore National Memorial Society of the Black Hills
The Mount Rushmore National Memorial Society of the Black Hills is not an individual writer but the organization credited with Mount Rushmore National Memorial, a historical work published in 1948. Project Gutenberg’s record describes the book as a history of the monument’s conception, construction, and meaning.
Available museum and reference listings describe the society as a nonprofit organization based in Rapid City, South Dakota, founded in 1929 to help raise funds for the construction of Mount Rushmore. That background helps explain the book’s voice: it reflects the perspective of the local civic group closely tied to the memorial’s early development.
Because this is an organizational author rather than a person, a standard author portrait does not appear to be available from the pages reviewed. In this case, the author entry is best understood as a historical institutional credit connected to the memorial’s creation and promotion.