She attended the Corrective Speech Institute in Buffalo, New York, and studied with H. G. Brainard, a neurologist in Los Angeles.
Speech was a family interest: her brother Guy Stevens Farrington was on the faculty at Stanford University, also lecturing on speech disorders, and his wife Alice was an actress known for giving dramatic recitations, who also taught public speaking.
[1] Gifford's work focused on early intervention for speech disorders, with expert services offered through the public schools.
She developed California's first teacher training program for identifying and managing speech disorders in the classroom.
[2] Gifford was on the faculty of the Special Education department at San Francisco State Teachers College, and director of the Speech Clinic at the University of California from 1915 to 1940.