Hans Sloane was born on 14 November 1739 at South Stoneham, Hampshire.
He was educated at Newcome's School,[1] Trinity College, Cambridge and the Inner Temple.
[2] He was the great-nephew of noted physician and collector Sir Hans Sloane, Bart., and first cousin of John 'Mad Jack' Fuller, who was also a Member of Parliament for Southampton in 1780.
Sloane was commissioned as a Lieutenant in the North Hampshire Militia when it was first embodied under the command of Hans Stanley in 1759, and was promoted to Captain in 1760 and to Lieutenant-Colonel the following year.
Sloane was later also MP for Southampton from 1780 to 1784, Christchurch from 1788 to 1796 and Lostwithiel, Cornwall, from 1796 to 1802, and a junior Lord of Trade from 1780 to 1782 (when he lost office with the fall of Lord North's government).