Embarked: 200 men
Voyage: 159 days
Surgeon's Journal: no
Previous vessel: Surry arrived 28 July 1814
Next vessel: Marquis of Wellington arrived 27 January 1815
Captain Alexander Scott
The Somersetshire was built on the Thames River in 1810. 
The convicts came from counties in England, Scotland and Wales - Middlesex, London, Stafford, Surrey, Suffolk, Gloucester, Norfolk, Southampton, Devon, Bristol, Dorset, Cambridge, Southampton, Nottingham, Lincoln, Berks, Lancaster, Worcester, Durham, York, Cumberland, Somerset, Chester, Warwick, Essex, Westmoreland, Salop, Wiltshire, Oxford, Cornwall, Perth, Aberdeen, Brecon, Merioneth, Carmarthen and Glamorgan. There were also several soldiers who had been court-martialed in Quebec CM, Spain CM and Portugal CM. 
Many were held in county gaols before being transferred to London where they worked in the hulks while awaiting transportation. Those tried in London were probably held in Newgate prison before being taken to the hulks.
Some of the men were held in the Perseus prison hulk at Portsmouth. They were sent on board the Somersetshire about the end of March 1814. These men included: Silvester Scott, John Shorrack, John Kerfoot, James Proctor, William Johnson, James Clohesy, Thomas Barnes, William Pope, Thomas Haydon, William Smith, Michael Buckley Samuel Harrison, John Rose, George Trowbridge, William White, Thomas Moan, Charles McGonagle, William Keenan, James Brocklehurst, Josiah Lunt, William Crisp, William Page, Edward McGoin and George Greaves.
The Somersetshire departed Spithead on 10th May 1814, called at Madeira and arrived at Rio De Janeiro on 13th July 1814 where she remained for 10 days. One convict, James Brown (alias White) was presumed drowned in a rash attempt of escape while they were at Rio.
The Military Guard was a detachment of 30 men under command of Capt. Nairn to join the 16th regiment. On the voyage out Private Andrew Johnson died from fever before reaching Rio. The wife of Private Quinten Owen gave birth to a healthy daughter on the 30th September 1814. 
The Somersetshire brought the news of the fall of Napoleon Bonaparte and on the 17th October, in honour of the news, a Royal Salute was fired from Dawe's Battery by command of Lieut- Governor Molle. In the evening a general illumination took place.
The prisoners were still on board at the time of the Royal Salute. They were not disembarked until 26th October 1814. The men would have been mustered on board by the Colonial Secretary John Thomas Campbell. (See Muster of Male and Female prisoners) After disembarking the prisoners may have been addressed by Governor Macquarie, a duty he rarely missed.
The convict indents included information such When and Where they were convicted, Sentence, Native Place, Occupation, Age, Physical Description and occasional information about Tickets of Leave. There were watchmakers, shoemakers, horse breakers, seamen, labourers, printers, brick makers, servants, silversmiths, a dentist, coachman.  William George Wells was noted as being a Lieutenant in the Royal Navy, although this was denied. He was convicted of theft and his case which was heard at the Old Bailey makes interesting reading. 
Forty two of the prisoners were under the age of 21, four being sixteen years of age. The youngest prisoner was Charles John Clifford who was a midshipman. He was convicted of theft at the Old Bailey on 14 July 1813 
William Hutchinson succeeded Isaac Nichols to the position of Superintendent of Convicts in New South Wales in April 1814. On 26 October by order of William Hutchinson fifty men from the Somersetshire were disembarked from the ship and forwarded to Windsor; sixteen men were sent to Liverpool and twenty-five to Parramatta. Eight prisoners were sent for private assignment straight from the ship: John Walsh, William Wells, Peter Pierce, William Holman, Benjamin Hart, John Proctor, Samuel McCreagh and James Kinsale. (see Assignment of Convicts for more information)
Supplies brought out by merchants included about thirty pipes of fine Madeira, twenty five chests of souchong tea, Palna Carpets, China paper Ginghams, Bengal Prints, Calico, Longcloths, Lines and Twines, Bengal Soap, Mens' Hats and coloured skins.
John Bayliss, John Tagg and Mary Neale all advertised their intent to depart on the Somersetshire which sailed for Calcutta on Monday 5th December 1814.
4). Return of Convicts of the Somersetshire assigned between 1st January 1832 and 31st March 1832 (Sydney Gazette 14 June 1832; 21 June 1832).....Joseph Furnace - Pit sawyer assigned to T.W. Cape at Sydney
5). In November while the Somersetshire lay at anchor, seaman Robert Carroll was seriously injured in a fall and afterwards conveyed to the hospital on shore. (Sydney Gazette 12 November 1814)
Robert Anderson / Andrews
Samuel Austin / Arston
James Connor / Conner
William Farthing Joseph Furness;
Thomas Aycliffe Gee
Andrew Grane/ Gree
John Levy Squires
John Walsh / Welch
 Home Office: Convict Prison Hulks: Registers and Letter Books, 1802-1849. Microfilm, HO9, 5 rolls. The National Archives, Kew, England. Ancestry.com. UK, Prison Hulk Registers and Letter Books, 1802-1849