Mary Feilding was a prominent figure in the field of social reform during the 19th century. She is best known for her work in establishing and managing institutions for the care of the mentally ill, particularly through the founding of the Mary Feilding Guild in 1885. This organization aimed to provide compassionate care and support for individuals with mental health issues, emphasizing the importance of dignity and respect. In addition to her work with the Mary Feilding Guild, she was involved in various charitable initiatives that focused on improving the lives of vulnerable populations. Her efforts contributed to the broader movement for mental health reform in the United Kingdom, advocating for better treatment and understanding of mental illness during a time when such issues were often stigmatized.