|Died||16 August 1800 (aged 70–71)|
|Allegiance||Kingdom of Great Britain|
|Years of service||1740-90|
|Commands held||Leeward Islands Station|
|Relations||John Shute Barrington, 1st Viscount Barrington (father)|
Samuel was the fourth son of John Shute Barrington, 1st Viscount Barrington of Beckett Hall at Shrivenham in Berkshire (now Oxfordshire). He entered the Royal Navy at the age of 11, and by 1747 had been promoted to post captain. He was lucky in his connections and lucky to join the Navy at the right time, and he also proved to be a good officer.
He went to sea in 1740. By 1745 he had passed for lieutenant and was confirmed in that rank in October 1746. His elder brother William Barrington, 2nd Viscount Barrington was then a junior Admiralty Lord, and pestered the First Lord of the Admiralty (at the time a civilian) to promote Samuel to the rank of master and commander, which was done. Next year, at the age of eighteen, he was made post-captain.
In 1759 Achilles captured a powerful French privateer, after two hours' fighting. In the Havre-de-Grace expedition of the same year Barrington's ship carried the flag of Rear-Admiral George Brydges Rodney, and in 1760 sailed with John Byron to destroy the Louisbourg fortifications. At the peace in 1763 Barrington had been almost continuously afloat for twenty-two years.
Between 1772 and 1775 He accompanied Captain John Jervis to Russia where they spent time in St. Petersburg and inspected the arsenal and dockyards at Kronstadt and took a tour of the yacht designed by Sir Charles Knowles for Catherine the Great. The pair continued on to Sweden, Denmark and northern Germany. All the while Jervis and Barrington made notes on defences, harbour charts and safe anchorages. They came home via the Netherlands, the two once again making extensive studies of the area and took copious notes describing any useful information. In 1778 Barrington became commander-in-chief of the Leeward Islands Station. While in post he organised the construction of Fort Barrington in Montserrat to enhance the defences of the capital Plymouth.
Barrington and Jervis then took a private cruise along the Channel coast calling at various harbours including Brest and making and improving their charts as they went. Barrington and Jervis, later Earl St. Vincent remained firm friends throughout their lives. On his return home, Barrington was offered, but declined, the command of the Channel fleet.
Barrington's last active service was the relief of Gibraltar in October 1782. As admiral he flew his flag for a short time in 1790, but did not serve in the French Revolutionary Wars. He died in August 1800.
Samuel Barrington Letterbooks. James Marshall and Marie-Louise Osborn Collection, Beinecke Rare Book and Manuscript Library, Yale University.