This black and white photograph shows a Santa Fe courier nurse, center, talking to passengers as they board the " El Capitan". The Atchison, Topeka & Santa Fe Railway Company assigned registered nurses, known as couriers, to their passenger trains from the 1930s to the 1960s to attend to the medical needs of their passengers. During their cross country travels the nurses, also, assisted with certain administrative duties or errands that required their attention.