Thomas Norris was the owner of several townlands in the parishes of Fenagh and Kiltubbrid, barony of Leitrim, at the time of Griffith's Valuation. In July 1859 Thomas James Norris, Dorcas Norris and others offered for sale lands in the barony of Leitrim commonly called the Annadale estate in the Encumbered Estates Court. The property was formerly held by William Slack and was under a lease dated 1853 between John Duckworth and the Norris family.
National Archives of Ireland:
Encumbered Estates' Court Rentals (O'Brien), Norris, 6 May 1859, Vol 56, MRGS 39/028, (microfilm copy in NUIG)