The information gleaned so far comes from a variety of sources:
J. B. Payne's Armorial of Jersey;
Auckland City Library holding of Hart's Army Lists;
descriptions of maps in the National Archives;
death notices;
Google Book Search findings;
The Times military intelligence news;
an auction house catalogue,
and, related to that, the New Zealand online auction site trademe.co.nz (!).
The last (no longer online?) let me know what he actually looked like, so here he is below:
CORRECTION: I have since discovered that this photo is NOT of James Willim Gosset, despite being sold at auction as being his portrait. The man in the photo is an uncle of James, John Hammond, Bailiff of Jersey (born 1801; died 1880).
Payne's Armorial of Jersey has a pedigree of the Gosset Family. The first of the two sheets is reproduced in this online Pedigree of Gosset. At the bottom of that sheet in the middle is Isaac Gosset, Clerk of Cheque, Ordnance Department. Isaac was born about 1774 and died 18 February 1854. He married twice, to Magdalen Robin (daughter of Philip Robin and Anne Pipon of Noirmont, Magdalen Robin d. in or before 1815), and in 1815 to Margaret Hammond (1787-1878), daughter of James Lempriere Hammond and Rachel Durell, or Le Vavasseur-dit-Durell, all of the island of Jersey in the Channel Islands.
James William Gosset was the second but eldest surviving son (after an older brother also named James) of the second marriage of Isaac to Margaret (James William Gosset is shown on the second sheet of the pedigree in the Armorial but not shown in the online Pedigree). James was born at Saint Saviour's Jersey on 30 December, 1818 (from the book The Gossett Family, by Frank Gossett). He was evidently named for his grandfather James Lempriere Hammond.
A catalogue entry from an auction house that recently sold items possessed by James William Gosset shows that he was marked for a military career from an early age. In the auction house catalogue mentioned above a writing box in one lot included a letter dated 21 December 1830 (when James was not quite twelve) advising that he had been placed on the list of candidates for admission to the Royal Military Academy at Woolwich (where Royal Engineers were trained). A Gentleman Cadet parchment in another lot was dated 8 February 1833, when he was fourteen.
The choice of a career in the Royal Engineers was a popular one for the Gossets. James' father Isaac Gosset had a half-brother Sir William Gosset (1782-1848) who had become a Major General in the Royal Engineers. Isaac and Sir William's nephew William Drsicoll Gosset (son of John Noah Gosset) also became a Major General, R.E., and assorted descendants of Sir William were R.E. officers. This can become problematic distinguishing one Gosset R.E. from another, as some of them had careers that were contemporary.
Hart's Annual Army List for 1860 (sourced at Auckland City Library, Family Research Section) gives information on James William Gosset's promotions to 1860.
16 Jun 1838 Ensign.
07 Sep 1840 Lieutenant.
01 Mar 1847 Captain - this appears to be promotion to second captain as a note on 1 April 1854, page 12 of the The Times, reads:
01 April 1854, "2nd Capt James William Gosset to be Captain".
26 Oct 1858 Major.
The Gentleman's Magazine of 1844 (via Google Book Search) gave an annoucement of his marriage, 16 September 1844, to Maria Asia Hull Woodriff.
The annoucement of the marriage in Gentleman's Magazine, 1844, page 541, read, for marriages in September of that year:
"16. At Jersey, Lieut. James W. Gossett, R.E., son of Isaac Gosset, esq. of Jersey, to Maria-Asia-Hull, dau. of Lieut. J.K Woodriff, R.N., of Preston, near Weymouth, and grand-dau. of Commissioner Woodriff, R.N., C.B., late Greenwich Hospital."
Maria Asia Hull Woodriff was christened 16 July 1819, Northam, Devon (found via the International Genealogical Index at familysearch.org), and died 26 January 1878, Parnell, Auckland, New Zealand (her death certificate). She was the only (or only surviving) child of John Robert Woodriff (1790-14 February 1868), who was later Captain in the Royal Navy, and his first wife Maria Hull (d. 1834). Note it should have read J.R. Woodriff in the annoucement and not J.K. (presumably a transcription error). Note the spelling of "Gossett" in the marriage announcement. This variation between Gosset and Gossett happened throughout the life of James and his family.
John Robert Woodriff was one of several members of his family to serve in the Royal Navy. His father (and Maria's grandfather) the Commissioner was Captain Daniel Woodriff, R.N. (1756-1842). More on the Woodriffs in a future posting. Among the online sources for the life and career of Daniel Woodriff is an entry in the Australian Dictionary of National Biography.
James William and Maria Asia Hull Gosset had seven children. The census returns for Jersey in 1861 and 1871 between them give us birthplaces for the children which act as a partial guide to where James W. Gosset's R.E. career took him and Maria:
(1) Maria Margaret Gosset (b. 1846, Mauritius)
(2) Gertrude Gosset (b. 23 January 1849, Mauritius)
(3) James Woodriff Gosset (b. 22 March 1851, Mauritius)
(4) Mary Asia Gosset (b. 23 Aug 1852, St. Helier, Jersey)
(5) William Montgomery Gosset (b.c. 1854, Clonmel, Ireland)
(6) Arthur Charleton Gosset (b. 1856, Kilkenny, Ireland)
(7) Alfred Hobson Gosset (b. 1857, Kilkenny, Ireland)
The National Archives Catalogue also gives us an idea of what James did at Mauritius where the three eldest children were born. A "Sectional elevation showing the proposed position of a lighting conductor at the Fantaron powder magazine", with "Scale: 1 inch to 10 feet" was signed 31 October 1851 by J W Gosset and A B Fyers.
A further item was a " 'Plan of a piece of ground and sea shore that he wishes to have conceded to him'. 'He' is Mr Murray; the map also showing land granted to Mr Murray; patent slip, breakwater and Mr bird's Basin; low water mark and depths. Copied by J W Gosset, Capt RE, 11 March 1852".
By the time Mary Asia was born in August 1852 (christened 15 September 1852) the family were on Jersey. They (or James at least) moved to Ireland by April 1853 where the youngest three children were born. This is evidenced by more plans from the National Archives Catalogue:
"Ireland: County Tipperary. (1) No 1: 'Clonmel. Plan of Barracks shewing the course of the Boelick Stream above and below the Barrack and the proposed new Auxiliary Drain ...'. Scale: 1 inch to 50 feet. Compass indicator. Signed by R Hammond, Foreman of Works, 16 April 1853. Signed by J Gossett, Captain, Royal Engineers, 18 April 1853. Initialled by B R B [Baker]. "
"(2) No 2: 'Clonmel. Artillery Barracks. Detail Plan of Sewer Mouth & Sluice ...': sections and elevation. Scale: 1 inch to 2 feet. Signed by J Bennett, Clerk of Works, 10 May 1853. Signed by Hammond, 6 May 1853; and by Gossett, 11 May 1853. (3) No 3: section along line shown on (1). Scale: horizontal 1 inch to 50 feet; vertical 1 inch to 10 feet. Signed by Hammond, 16 April 1853; and by Gossett, 18 April 1853. Initialled by B R B [Baker]."
EDIT: 9 Feb 2010: The information below has been shown to be incorrect! While the Times does name "Brevet-Col. James W. Gosset" Hart's Army Lists for 1866 and 1867 show quite clearly that the Gosset appointed commander of Engineers at Woolwich was William Driscoll Gosset, NOT James. Instead in the 1866 Army List James William Gosset was commanding Royal Engineers in the Windward and Leeward Islands! This is supported by an entry in Chambers's Edinburgh Journal for 1869, which on page 522 quotes "Colonel Driscoll Gosset" concerning matters at Woolwich. I will leave the original part of the posting here. This shows the need to check sources - or to check more than one source, even a reliable one!!!
A notice in The Times shows he was promoted Brevet Colonel in 1860 and moved to England in 1867. Under Military and Naval Intelligence in the 8 May 1867 edition, page 14, is a note that Brevet-Col. John S. Hawkins, commanding Royal Engineers at Woolwich, had a new posting to Barbados from 17 May. He had been "superseded by Brevet-Col. James W. Gosset (January 6, 1860), from Dublin, who takes up his appointment at Woolwich this morning".
Joseph Haydn's "Book of Dignities", page 902 (Auckland City Library holding, 4 GBR PRG) stated that "Jas. Wm. Gosset" was promoted to the rank of Major General, 6 July 1867, although the auction house catalogue showed that his Major General's Commission was dated 12 June 1867. He had retired shortly afterwards, being Maj. Gen. RE retired on Full pay in the 1871 census for Jersey, where he was with his family, except for his eldest son, James Woodriff Gosset.