At the same time, he was Blanc Coursier Herald, an office founded by statute in 1726 and united to that of the genealogist of the Order of the Bath.
Shortly after his appointment as Chester Herald, he arranged for his family pedigree to be brought up to date, thus establishing his legal right to the Blount coat of arms: Barry nebuly Or and Sable, with a crest of A Sun in spleandour charged with a dexter Gauntlet proper.
Blount was promoted to the office of Norroy King of Arms in 1859.
He held this position until his promotion to the post of Clarenceux King of Arms in 1882.
He died, a bachelor, in 1894 and is buried at St Mary Magdalen Roman Catholic Church, Mortlake.