Washington Sewallis Shirley, 9th Earl Ferrers (3 January 1822 – 13 March 1859), styled The Honourable Washington Shirley from 1827 to 1830 and Viscount Tamworth from 1830 to 1842, was a British hereditary peer.
Ferrers was the elder son of Robert William Shirley, Viscount Tamworth and the grandson of Washington Shirley, 8th Earl Ferrers. He became heir apparent to the earldom when his father died in 1830. He was educated at Eton College and succeeded his grandfather in the earldom in 1842.
On 10 February 1852, Ferrers was appointed a Deputy Lieutenant of Leicestershire, and on 10 January 1857, a Deputy Lieutenant of Staffordshire.[1]
On 23 July 1844, Ferrers married Lady Augusta Annabella Chichester, daughter of Edward Chichester, 4th Marquess of Donegall, at St George's, Hanover Square. They had five children:[2]
Lord Ferrers died at Staunton Harold Hall in March 1859 at the age of 37 and was buried there. He was succeeded in the earldom by his eldest son Sewallis.
. James William Edmund Doyle . The Official Baronage of England . 1 . London . Longmans, Green . 1886 . 741.
. Stemmata Shirleiana . Evelyn Shirley (1812–1882) . Nichols and Sons . Westminster . 1873 . 203–204 .