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William Joseph Denison

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Adapted from the English Wikipedia article William Joseph Denison, available under CC BY-SA 4.0Updated 11 August 2025
William Joseph Denison
BornTemplate:Birth date
Princes Street, Lothbury, London, England
DiedAugust 2, 1849(1849-08-02) (aged 80)
Occupation(s)Banker, politician, landowner, philanthropist
Years active1796–1849
Known forSenior partner at Denison, Heywood, & Kennard; Whig MP for Camelford, Kingston upon Hull, Surrey, and West Surrey; High Sheriff of Yorkshire (1808/09)

William Joseph Denison (12 May 1769 – 2 August 1849), the son of banker Joseph Denison (circa 1726–1806), was an English figure known for his roles in banking, politics, landownership, and philanthropy.

Life

Born on Princes Street, Lothbury, William was the sole male heir of Joseph Denison (circa 1726–1806), who had relocated from western Yorkshire to London early in his life and amassed considerable wealth.

William established himself as a leading banker, becoming a senior partner at Denison, Heywood, & Kennard, located on Lombard Street. His political career as a Whig Member of Parliament spanned several constituencies: he represented Camelford from 1796 to 1802, served as MP for Kingston upon Hull beginning in 1806, and later represented Surrey between 1818 and 1832. Following the enactment of the Reform Act 1832, he continued parliamentary service as the representative for the newly formed West Surrey constituency until his passing.

Upon his father's death in 1806, William inherited estates in Yorkshire (Seamer) and Surrey (Denbies, near Dorking). He notably expanded his Surrey lands by purchasing neighboring properties from both the Duke of Norfolk and the Earl of Verulam. His financial portfolio also grew significantly over time; at his death at his residence in Pall Mall, London, on 2 August 1849, his estate was valued at roughly £2.3 million—equivalent to about £184 million in 2017 currency. Additionally, he held the office of High Sheriff of Yorkshire during 1808/09. Remaining unmarried throughout his life, he bequeathed almost all of his fortune to his nephew, Lord Albert Conyngham, who subsequently took on the Denison surname.

According to records from The General Cemetery Company, Denison’s burial site is plot number 8304 at Kensal Green Cemetery.