Georgia O’Keeffe was an American painter considered “The Mother of American Modernism.” She was born in Wisconsin, on November 15, 1887. Some of her most important work is at the Metropolitan Museum and at private collections. The San Francisco Museum of Modern Art (SFMOMA) has one of her pieces. She passed away in 1986.
From the San Francisco Museum of Art: “When she was born, it was unusual for a woman to become an artist, but she went on to study art anyway. Alfred Stieglitz, a famous photographer, had an art gallery in New York, and he showed O’Keeffe’s work at his gallery and encouraged her to make art. O’Keeffe’s paintings often depict scenes and objects from places where she spent time, such as Lake George, New York, and the New Mexico desert.”

Source: San Francisco Museum of Modern Art.
“I found I could say things with color and shapes that I couldn’t say
any other way—things I had no words for.”
-Georgia O’keefFe
For a good list of the artist’s work, I found this website: