The Frontier Nursing Service (FNS) is a healthcare organization founded in 1925 by Mary Breckinridge in the rural Appalachian region of Kentucky. Its mission is to provide high-quality nursing care and maternal health services to underserved populations. FNS employs nurse-midwives and community health workers to deliver care in remote areas, focusing on prenatal, childbirth, and postnatal services. FNS is known for its innovative approach to healthcare, combining nursing with midwifery to improve maternal and child health outcomes. The organization also emphasizes education and training for healthcare professionals, contributing to the development of the nurse-midwifery profession in the United States.