Flora Whitney Miller (1897-1986) was born into two prominent New York families as the daughter of Gertrude Vanderbilt and Harry Payne Whitney. She attended the Brearley School in New York and Foxcroft School in Middleburg, Virginia, where she met and became close life-long friends with the artist Kay Sage. In 1916 Flora made her debut and, shortly after became engaged to Quentin Roosevelt, son of President Theodore Roosevelt. Before they married, Quentin died tragically in 1918 when his plane was shot down in Germany. While attending Columbia University, she met Roderick Tower and married him in 1920. She gave birth to a daughter Pamela in 1921 and a son Whitney in 1923, and was divorced from Tower in France in 1925. In 1927 she married G. Macculloch Miller and had another two children, Flora in 1928 and Leverett in 1931.
Flora Whitney Miller grew up in New York and worked closely with her mother Gertrude Vanderbilt Whitney, meeting and befriending many artists, dealers, and art patrons. She helped her mother plan the founding of the Whitney Museum of Art and served on the museum's board, serving as President after her mother's death in 1941 until 1966, and as Chairman from 1966 through 1974. Miller died on July 18, 1986.
From the guide to the Flora Whitney Miller papers regarding Kay Sage, 1915-1982, (Archives of American Art, Smithsonian Institution)
