She was the first woman to receive a research grant from the British Medical Society. Her doctoral research on the histology of ovarian development and hormonal control of lactation was done in the laboratories of physiologist Ernest Staring. Additionally, she joined the staff of the Lister Institute of Preventive Medicine, where she conducted research on the bacteriology and biochemistry of milk. In 1909, she received a Jenner Fellowship from the institute to study maternal and child health programs in Europe. Janet's subsequent career involved epidemiological research, educational administration, and maternal and child welfare advocacy. All these researchers play different roles in healthcare today because without their research on epidemiology we would not know how to deal with epidemics as we do now when they occur in our country.