George Bunbury was the great-grandson of the first Bunbury to settle in Ireland. His grandfather, the first William Bunbury acquired the estate at Lisnavagh at the close of the 17th century. His father was Thomas Bunbury of Kill, a prominent magistrate and sometime High Sheriff of County Carlow, while his mother, Catherine Campbell hailed from Drumsna, Co. Leitrim, and was closely related to the great naval dynasty of Rowley as well as Sophia de Clifford, Governess to Charlotte, Princess of Wales.
Born on 24th November in the famine year of 1747, George was six or seven years old when he lost both his mother and his uncle, William Bunbury. The death of the latter ultimately left his older brother William heir to the Lisnavagh estate in Co. Carlow. His father was married again to Susanna Isaacs who, upon the death of her brother at the battle of Fontenroy, became the heiress of Hollywood House in Co. Down. Thomas and Susanna Bunbury had several more children, the Bunbury Isaac family.
George was educated at Mr. Hobart's School and Trinity College Dublin. On June 27th 1768 Thomas took the Post-Chaise to Dublin ‘to put my son George into the College’. For the journey, he was accompanied by both George and the Rev Mr Benjamin Hobart ( ‘my son George’s schoolmaster of Carlow'). George was entered into the College as a Fellow Commoner on 28th June 1768. The following day, Thomas attended the sale of lands at Fryarstown but was outbid by Jonas Duckett.
George entered the Middle Temple on 6th September 1770. He acquired his BA in 1772.
In the autumn of 1773, his older brother William Bunbury was married in Swords to Katherine Kane, daughter and sole heiress of the prominent businessman and landowner called Redmond Kane (aka O'Cahan). The wealth brought in by this marriage would do much to ensure the Bunbury family's survival at Lisnavagh for at least the next 235 years. Meanwhile, George's sister Letitia married George Gough and so became mother to the celebrated Victorian soldier, Field Marshal Sir Hugh Gough.
William was elected MP for Carlow in Grattan's famous Parliament of May 1776. Shortly after William's election, George was appointed Sheriff for the County, a position he held for the whole of 1777.
However, William was tragically killed in a horse accident near Leighlinbridge in 1778. After his death, his widow took the family to live in Bath until their eldest son, Thomas Bunbury, was old enough to come back and manage Lisnavagh. In the meantime, the property was managed by George and his brother, Benjamin Bunbury of Killerig, a magistrate who made a concerted effort to settle the nerves of the Protestant Loyalist community in County Carlow during the run up to the 1798 Rebellion. Ultimately it was William's posthumous daughter Jane who, by her marriage to John McClintock, would produce the future heir of Lisnavagh, William McClintock Bunbury.
Above: The late Teal Bunbury at Lisnavagh
12 February 1778: Draft mortgage made between George Bunbury, Ramore (Rathmore), county Carlow, esquire, of one part, and Sir Charles Burton, Pollardstown (Pollerton), county Carlow, of the other part. 
20 July 1779: Mortgage made between Sir Charles Burton, city of Dublin, of the first part, the Honourable William Cuffe and Joseph Hoare, of same place, esquires, of the second part, and Joshua Meredith, of same place, esquire, of the third part. Recites indenture dated 12 February 1778 made between George Bunbury, Rathmore, county Carlow, esquire, of one part, and Sir Charles, of the other part. In consideration of sum of £5,000 paid to Bunbury by Sir Charles, Bunbury demises various lands to him: the townland of Cardingstown otherwise Cardiffstown, part of the townland of Churchtown, the townlands of Brackenagh otherwise Brackinagh, Shane, Phromplestown and other townlands, county Kildare, for 1,000 years at annual rent of one peppercorn. This indenture defeazable by repayment of sum of £5,000 with interest by Bunbury to Sir Charles. Also recites marriage settlement (document number P1/0249). Also recites that Joshua Meredith obtained a judgement against Sir Charles in the Court of Common Pleas during Easter Term, 1779, for the sum of £1,509.9.8 plus costs. Sum of £806 is now due. Meredith has also advanced to Sir Charles the sum of £194. Sir Charles now releases the sum of £5,000 to Meredith with interest due to grow thereon. If Sir Charles repays to Meredith the sums owing, Meredith's title ceases. 
It is my belief that George lived just down the Slaney from Lisnavagh at Rathmore Park during this time and he also had a place at Granby Row in Dublin.
In 1782, George placed Lisnavagh up for rent for 14 years.
In 1786 George was elected for the "close" borough of Thomastown. This seat was owned by Lord Clifden, a Government supporter, and thus George was obliged to obey Clifden's political instructions. In 1789, for instance, he voted for the Regency - an unusual stance from Clifden's point to view but perhaps he thought it prudent to vote for the apparent powers to be. The following year he was among those who voted to elect John Foster as Speaker - a useful decision in light of the subsequent marraige between George's niece Jane Bunbury and Speaker Foster's cousin John McClintock.
The Lisnavagh Archives contain a map of 'lands commonly called the Commons in the County of Kildare, the estate of George Bunbury, drawn by Christopher McCarthy and dated 1st June 1790.
George was re-elected for Thomastown in the 1790 election. For his pains, George was rewarded an annual payment of £500 by Lord Clifden. However, Clifden's opponents harangued George and his type for being "the confidential depositaries of his Lordship's power, not the honest discharges of a constitutional trust". This was certainly true when George was returned for both Thomastown and Clifden's other borough of Gowran in the election of January 9th 1797. This was considered particularly galling as Clifden owned not "a single foot of property" in Gowran. In 1800, George did as his master compelled and voted for the Union. He simultaneously resigned his seat to Verny Darby, Esq, and in April 1800 he accepted instead the office of Escheator of Ulster.  .
According to Sir Jonah Barrington's tell-all memoir, George Bunbury 'changed sides and principles, and was appointed Serjeant in 1799 opposed Union, and supported it'. ("Historic memoirs of Ireland; comprising secret records of the national convention, the rebellion, and the union; with delineations of the principal characters connected with these transactions").
George died unmarried on 17th May 1820. (27)
LEONARD & ors TO ADAMS, 1809 [Basic details and name but would need to do a better transcription as it is long and complex]
John Leonard of Newton county of Kildare Esquire the Elder and Deborah Leonard his wife John Leonard the younger only son of John and Deborah and Caroline Adams daughter of Benjamin Adams of county Cavan. Seized of the lands at Moheen, Monenitmelancy Barony of Gowin in county Kilkenny, Moone of county of Kildare lease made 1752 Jeosia Beale. Jno Malone of county Kildare James Malone, Jeds Swan and James Eustace of Hacketstown county of Carlow William Barrett, John Read,
Indented Memorial of lease dated 20th March 1785 Sarah Leonard to John Leonard and Samuel Leonard, Charleton Leonard of county of Kildare – the said Samuel Leonard since dead, deceased 22nd April 1796. John Fletcher and Saragh his wife lands of Narrabeg in the county of Kildare. Thomas Disney was plaintiff and John and Samuel Leonard defendants date January 1809 Leighlin Bridge in the county of Carlow 9th July 1806 Gro Bunbury of Rathmore in the county of Carlow John Whelan of the first part and Jno Leonard the elder of the other part Knocknacrue in the county of Kildare James Young and John and Samuel Leonard. Thomas Ramsay, Rob Robinson, Beaumont Astle of Tullow otherwise Tullophelan in the county of Carlow.
2 April 1770 Benjamin Burton Doyne to Walter Nulbank. William Elliott, Edward Westlby, Richard Mercer Luke Mercer Richard Townsend John Smith etc. etc. Whitstone
Rathmore [not sure if this is part of the above deed or not now?]
Captian Kemmiss, Hacketstown and also that part of the lands of Tullowbeg, mearing and bounding on the North and west by that part of said lands then or late in the possession of the Rev. Richard Brough and Mr Jno Brough on the south by the high road leading from Tullow to Castledermot.
 Details of mortgage included in description of document number P1/0252. [Burton Family Papers - P1/0241].
 Burton Family Papers - P1/0252. It is noted that this deed was registered at the Register Office, city of Dublin, on 21 July 1779 in book 325, page 308, number 220599.
 "Generous compensation for boroughs which would no longer be represented helped to weaken opposition to the Union. Compensation totalled £1,260,000 and was paid to supporters and opponents alike - the Marquis of Downshire, against the Union, got £57,000 for 7 seats he controlled. Examples of 'Union engagements' include: for Sir John Blaquiere (the promise to make him a peer was not kept) £1,000 a year for his wife and daughter, £700 annual pension for himself and another £300 a year from 1803; sinecures of between £250 and £800 a year for 27 MPs; eleven MPs who were lawyers were promoted or were given other judicial rewards; and £300 a year for Theobald McKenna, a pamphleteer, for his literary services". From 'The Act of Union', Jonathan Bardon, ©The Centre for Data Digitisation and Analysis, 2003.
 E.M. Johnston, History of the Irish Parliament 1692-1800; George Dames Burtchaell, Genealogical memoirs of the members of Parliament for the county and city of Kilkenny (Sealy, Bryers & Walker, 1888)].