At the time of Griffith's Valuation Henry G. Fletcher owned an estate at Rosleague in the parish of Ballynakill, barony of Ballynahinch, county Galway, containing 1286 acres. He bought his property in 1851 from the sale of the estates of the ffrenchs of Castle ffrench in the Encumbered Estates' Court.
National Archives of Ireland:
Encumbered Estates’ Court Rentals (O’Brien), ffrench, 3 June 1851, Vol 8, MRGS 39/003, (microfilm copy in NUIG)
National Library of Ireland:
Includes lease of Rossleague, Tureene and Sheeans, Co Galway, William Darcy of Gorteen, Co Mayo to Sir Thomas ffrench Bart of Castlefrench for 3 lives (his 3 sons) & 61 years, 31 Oct 1800. D.16,899-D.16,932