Born at 15 Spring Gardens, Westminster, London on 27 March 1811, he was the eldest child of Sir George Duckett, 2nd Baronet (1777–1856), M.P.
for Lymington, by his first wife Isabella (1781–1844), daughter of Stainbank Floyd of Barnard Castle; his grandfather Sir George Jackson, 1st Baronet assumed the surname of Duckett in 1797, having married the heiress of that family.
Matriculating on 13 December 1828 as a gentleman commoner of Christ Church, Oxford, he spent much time hunting, and left the university without a degree.
[1] Joining the West Essex Corps of Yeomanry Cavalry, Duckett on 4 May 1832 was commissioned a sub-lieutenant in the 2nd Regiment of Life Guards.
It was published in the autumn of 1848, and its merits were recognised by gold medals from Franz Joseph I of Austria in 1850, Frederick William IV of Prussia, and Napoleon III.
[1] In 1869 Duckett published Duchetiana, or Historical and Genealogical Memoirs of the Family of Duket, from the Conquest to the Present Time (enlarged edit.
[1] Duckett published also contributions to local archæological societies, and:[1] He edited:[1] He also translated from the German Mariolatry, Worship of the Virgin; the Doctrine refuted by Scripture (1892).