In 2001, the Georgia O'Keeffe Museum received, as a bequest from the Estate of Maria Chabot, hundreds of letters she received from Georgia O'Keeffe and Alfred Stieglitz between 1941 and O'Keeffe's death in 1986. Most of the letters date from the 1940s and describe the experiences Chabot and O'Keeffe shared during the years Chabot lived with O'Keeffe at the artist's Ghost Ranch house (1941-1944) and oversaw the renovation of the ruined adobe hacienda that O'Keeffe purchased in 1945 in the village of Abiquiu (1946-1949). Most of O'Keeffe's letters to Chabot were written from New York, and because the artist corresponded frequently from New York only with Chabot, her letters are a rich and unique resource of information about the artist's thoughts and feelings about her daily life there.

The Maria Chabot Archive also includes hundreds of photographs and film, primarily taken by Chabot in the 1940s. Chabot took numerous photographs of O'Keeffe, her Ghost Ranch and Abiquiu houses, her paintings, and their camping/painting trips in Northern New Mexico. Records and notes relating to the photographic material is also included.

The archive includes photocopies of letters from Chabot to O'Keeffe and Stieglitz, and notes related to these letters. Some of this material duplicates originals found in the archive, but the bulk of the photocopies are of materials housed at other institutions. This material is currently restricted.