They set up the Kimbell Art Foundation in 1935 to establish an art institute, and by the time of his death in 1964, the couple had amassed what was considered to be the best selection of old masters in the Southwest. Kay left much of his estate to the Kimbell Art Foundation, and Velma bequeathed her share of the estate to the foundation as well, with the key directive to "build a museum of the first class."
The Foundation's board of trustees hired Richard Fargo Brown, then director of the Los Angeles County Museum of Art, as the founding director of the museum with the task of constructing a building to house the Kimbell's art collection. Upon accepting the post, Brown declared that the new building should itself be a work of art, "as much a gem as one of the Rembrandts or Van Dycks housed within it."The proposed museum was given space in a 9.5 acre (3.8 hectare) site in Fort Worth's Cultural District, which was already home to three other museums, including the Modern Art Museum of Fort Worth and the Amon Carter Museum, specializing in art of the American West.:212Brown discussed the goals of the institution and its new building with the trustees and summarized them in a four-page "Policy Statement" and a nineteen-page "Pre-Architectural Program" in June 1966. After interviewing a number of prominent architects, the museum hiredLouis I. Kahn in October 1966.:211 Kahn's previous works included such acclaimed structures as the Salk Institute in California, and he had recently been honored by being chosen to design the National Assembly Building for what would become the capital of the new nation of Bangladesh. Construction for the Kimbell Art Museum began in the summer of 1969. The new building opened in October 1972 and quickly achieved an international reputation for architectural excellence.:353,360
https://www.kimbellart.org/Fort Worth, Texas museum of international art with collections ranging from antiquities to 20th century contemporary art.