Studied Sorbonne and College de France, 1912-1913.
Sergeant"s work includes non-fiction works (French Perspectives, 1916, and her best-known work Shadow-Shapes: Journal of a Wounded Woman, 1920) and one novel (Short as Any Dream, 1929). She was also a biographer and author of a study about Willa Cather. Sergeant was a war correspondent for The New Republic at the western front, where she was wounded in 1918.
After 1920, she was living in Taos, New Mexico, following her doctor"s advice.
She wrote about the Pueblo Indians and New Mexico itself until the mid-1930s. She spent some time in New York and studied under the analyst Carl Jung.
She spent some time writing at the MacDowell Colony in New Hampshire. She also wrote Robert Frost: The Trial by Existence (1960).
Clubs: Cosmopolitan (New York City).