Henrietta Heald, What was a girl to do? Rachel Parsons (1885–1956): engineer and feminist campaigner, su blue-stocking, 23 maggio 2014. URL consultato il 6 gennaio 2015.
«In January 1919, Rachel and her mother, Katharine, established the Women’s Engineering Society, with Rachel as the first president and Caroline Haslett, an electrical engineer, as secretary.»