Sir John Elwill, 4th Baronet (died 1 March 1778) was an English aristocrat and politician.He was the only son of Sir Edmund Elwill, 3rd Baronet, and his wife Anne Speke, daughter of William Speke, of Beauchamp, Somerset. The third baronet was Comptroller of the Excise; he inherited the baronetcy from his childless elder brother Sir John Elwill, 2nd Baronet, on the latter's death on 10 September 1727.The fourth baronet inherited the Elwill baronetcy on his father's death on 2 February 1740. He was elected Member of Parliament in the Parliament of Great Britain for Guildford in the British general election, 1747 and held the seat over three parliaments until 1768.He married Selina, Lady Ranelagh, on 30 November 1755 at West Dean. She was the widow of Arthur Cole, 1st Baron Ranelagh, and the daughter of Peter Bathurst, of Clarendon Park, Wiltshire. Her mother, Bathurst's second wife Lady Selina Shirley, was the daughter of Robert Shirley, 1st Earl Ferrers.Sir John Elwill, 4th Baronet, died without male issue on 1 March 1778, and was interred at Egham, Surrey. The baronetcy became extinct. His widow died aged 60 on 9 February 1781 at West Dean, and was buried there 9 days later.

Sir John Key, 1st Baronet (16 August 1794 – 14 July 1858) was a wholesale stationer and Whig politician in England.He was elected Sheriff of the City of London in 1824 and Lord Mayor of London for two years, from 1830 to 1832.He was elected at the 1832 general election as a Member of Parliament (MP) for the City of London, but resigned his seat on 12 August 1833 by taking the Chiltern Hundreds. During his parliamentary career he supported the abolition of slavery, the repeal of part of the assessed taxes, abrogation of the Corn Laws, the adoption of triennial parliaments and the vote by ballot.He was made a baronet in 1831, of Thornbury and Denmark Hill. In 1853 he ran for election to the office of Chamberlain of the City of London, emerging victorious after a closely fought contest with the young liveryman Benjamin Scott. He died in the office of Chamberlain, and Scott was elected unopposed in his stead.He died at his home in Streatham on 14 July 1858 and was buried at West Norwood Cemetery.John Key married Charlotte Green on 17 Aug 1814. They had five children:Kingsmill Grove (born 7 May 1815)Thomas Kelly (10 July 1819)Elizabeth Susan (13 March 1821)Lucy Wilson (18 November 1822)Charlotte Marian (7 May 1826)Lucy Wilson Key married George Parbury (his second wife) on 22 March 1849 at St Mary, Thornbury in Gloucestershire.

Sir John Gibbons, 2nd Baronet (died 9 July 1776) was a British member of parliament.Gibbons was the son of Sir William Gibbons, 1st Baronet. He represented Stockbridge (1754–1761) and Wallingford (1761–1768) in the House of Commons. Upon his father's death in May 1760, he succeeded to the title of 2nd Baronet Gibbons.He was invested as a Knight Companion (KB) of the Order of the Bath. His daughter Emily Gibbons married Gerald FitzGerald on 9 November 1820. That marriage produced his grandson, Gerard George Fitzgerald.
Sir John Gibbons, 2nd Baronet (died 9 July 1776) was a British member of parliament.Gibbons was the son of Sir William Gibbons, 1st Baronet. He represented Stockbridge (1754–1761) and Wallingford (1761–1768) in the House of Commons. Upon his father's death in May 1760, he succeeded to the title of 2nd Baronet Gibbons.He was invested as a Knight Companion (KB) of the Order of the Bath. His daughter Emily Gibbons married Gerald FitzGerald on 9 November 1820.

Sir John Key, 1st Baronet (16 August 1794 – 14 July 1858) was a wholesale stationer and Whig politician in England.He was elected Sheriff of the City of London in 1824 and Lord Mayor of London for two years, from 1830 to 1832.He was elected at the 1832 general election as a Member of Parliament (MP) for the City of London, but resigned his seat on 12 August 1833 by taking the Chiltern Hundreds.