Leases of lands in the Newtownards area, Co. Down, part of the Marquis of Londonderry's estate, 1819-57. Testamentary papers of various families in the same area, 1872 - 1901.

Míreanna comhchosúla

• About 130 documents relating to the activities of Rev. Mark Cassidy, curate of Newtownards, as an advisory agent for the Marquis of Londonderry's estates in Co. Down, including references to the charity schools at Newtownards and Comber and elections, local politics, etc., 1810-39.
• Association books: letter re a privately printed volume of poetry by the fourth Marquis of Londonderry.
  de réir: Kennedy, D.
  Foilsithe / Cruthaithe: (1915)
• Lord Castlereagh: being a review of "Memoirs and correspondence of Viscount Custlereagh, second Marquess of Londonderry" edited by his brother Charles Vane, Marquess of Londonderry.
• Letters from, to, and concerning the Marquess of Londonderry, 1804-21.
  Foilsithe / Cruthaithe: (1923)
• Lease of premises in Newtownards, Marquess of Londonderry to Miss E. Darley, 9 April, 1810. Conveyance of tenement in Newtownards, W. Francis and J. Alexander to S. Black, April, 1844.