Andrew Buchanan (c1738-1813) of Mersheen in County Wexford, was commissioned as a Lieutenant-Fireworker in the Royal Irish Regiment of Artillery in February 1760, promoted to Second Lieutenant in February 1765, to First Lieutenant in March 1771 and to the rank of Captain in August 1776. He was later a member of the Duncannon Yeomanry and suffered a large loss of property at the hands of the insurgents during the Irish Rebellion of 1798. This portrait miniature of him came into the collection at Rouse Hill House through his granddaughter Eliza Ann (Bessie) Buchanan (1843-1924), following her marriage to Edwin Stephen Rouse in 1874. Bessie was born in New South Wales but met her Irish Buchanan relatives in 1867-1868 while on an extended trip “home” to Ireland, Scotland and England with her parents. She may have been given the miniature at that time. It contains a plaited lock of Andrew Buchanan’s hair encased behind glass at the back of the portrait.