After her graduation, she worked for a short time at the North End Health Clinic. In 1917 Smith College began running a psychiatric social work degree, and she enrolled. 1919 saw the publication of a monograph,
The Selection of Foster Homes for Children, with Mary S. Doran. From 1919 until 1923, she worked as director of social services at Danvers State Hospital in Massachusetts. From 1923 until 1925, Reynolds worked in new clinics for behavioral training of pre-school children in the Division of Mental Hygiene in Boston. In 1925, Reynolds returned to Smith, now serving as associate director of the Smith College School for Social Work, teaching courses in the summer term and supervising students' field placements during the rest of the year; conducted research and had clinical assignments at the Child Guidance Clinic in Philadelphia and at the Institute for Child Guidance and the Jewish Board of Guardians in New York. In 1935, her position at Smith changed, and she became the associate director in charge of advanced courses. This year, Reynolds established and taught the first advanced course, Plan D, for the training of supervisors and teachers of social work. During this period she used
Marxist analysis as an element of the course, and attempted to unionize college employees. This was not well received by the Dean. In 1937, Reynolds offered her resignation to Everett Kimball, director of the School for Social Work, due to their disagreement over the direction of the program, her political activities, and the termination of Plan D. Reynolds left Smith in 1938, after teaching the last group in the Plan D program. Between 1939 and 1942, Reynolds was self-employed as a consultant in staff development for social work agencies. Reynolds published her major work for social work educators,
Learning and Teaching in the Practice of Social Work, describing the contributions of psychology and the social sciences to the problems of practice and teaching in social work in 1942. Between 1943 and 1947, Reynolds was appointed by the United Seamen's Service to the Personal Service Department of the National Maritime Union, where she became case supervisor. She drew on this experience to write Social Work and Social Living, which was published in 1951. In 1948, Reynolds retired to the family home in Stoughton, where she studied Marxist works, corresponded with friends and former students, had a small clinical practice, and worked as a volunteer on community projects, for the Methodist Church, and the Stoughton Historical Society. == In media ==