Major-General Francis Plunkett Dunne is listed in the British Imperial Calendar as Clerk of the Ordnance for the year 1853. His death was reported in the ‘Freeman’s Journal and Daily Commercial Advertiser’ on 8 July 1874 at the age of 72. He was described as a “real old Irish gentleman”, he had served in the Queen’s County Rifles until a few years before his death.
During his career he had also represented the borough of Portarlington in Parliament from 1847 to 1857 and then the Queen’s County from 1859 to 1868. His politics was described as a “Liberal Conservative” and was appointed Clerk of the Ordnance in 1852, possibly during Lord Derby’s short government.
From 1858 to 1859 Dunne held the appointment of Private Secretary to the Earl of Eglinton. After losing his seat at Queen’s County, Dunne effectively retired. He died at his home, Brittas House, Clonaslee in Ireland.