The papers consist, for the most part, of Richard Lovell Edgeworth's personal correspondence which reflect the diversity of his pursuits and concerns, including scientific research, developments in engineering and mechanics, literature, educational theory and the provision of education for the poor, political reform in Ireland and the rights of Catholics, family life, estate business and matters relating to Edgeworthstown, Co. Longford. These papers shed light on his career as a inventor, writer, educator, politician and landlord and include letters from, amongst others, Josiah Wedgwood, William Strutt, Joseph Banks, Sir Humphry Davy, John Foster, Dr. Peter Flood, William Reynolds, Marc Auguste Pictet, and his brother in law Capt. Francis Beaufort. Also included are draft and copy letters from Edgeworth to various recipients, including members of his family.