His grave is on the Skibbereen Heritage site:
http://www.graveyards.skibbheritage.com/Gravestone.aspx?GravestoneID=655
He died in Ballydehob, in early years he was lucky to escape to America where he rose to be a Judge of the Marine Court of New York. He died immensely wealthy. He was a Pallbearer at the funeral of Addis Emmett another Cork born New York lawyer and brother of Robert Emmett
On the tomb is buried his sister married to Nathaniel Evanson of Friendly Cove, Durrus, (House still overlooking Dunmnnus Bay), she died in childbirth.
His grave is one of the very few prior to c 1895 with an inscription in Irish:
‘Do ghradhaigh sé na Gaedhil agus an Ghaeilge’ (He loved the Gael and the Irish Language)
Swantons, Ballydehob:
William Swanton & Mary Radcliffe
barrybradfield added this on 22 Nov 2013
This marriage goes back a generation and took place in 1717.Source: Dublin Castle Report. http://www.ginnisw.com/SWANTON%20FAMILY%20HISTORY%20WORLDWIDE/Dublin%20Castle’s%20Report/Thumb/DCR%20A2.htm This William is almost certainly a son of John Swanton of Lettertinlish (near Skibbereen) who died in 1717. You often notice marriages taking place shortly after a death and the resulting inheritance. This William appears to have lived in nearby Aghills and he died in 1750. He is the strongest contender for the ancestor of the next generation which includes amongst others Samuel who had a child baptised in Kinsale in the 1740’s and Ellen who was married to James Hawes by 1750 when John Wesley visited Bandon. Ellen/Ellinor would have been born say 1730 and died in 1806. She was the aunt of Judge Robert.
West Cork History 
Pingback: Judge Robert Swanton (1767-1840), Ballydehob, West Cork presiding at New York Marine Court with Tipstaff Casey 1827. | West Cork History
Pingback: Judge Robert Swanton (1767-1840), of New York Marine Court, late of the Parish of Skull, West Cork, Oath to become US Citizen 1800 and ‘To renounce forever All Allegiance and fidelity to any foreign Prince, Potentate, State or Sovreign, whatsoever a
Pingback: Robert Swanton, (1764-1840) Ballydehob, West Cork, member United Irishmen Directory arrest, imprisonment escape to New York where he was active in US Politics and became Judge of Maritime Court. | West Cork History
Pingback: Judge Robert Swanton (1764-1840), Ballydehob, New York, Ballydehob, West Cork, US Citizenship application 1800, Officer New York Militia 1811, Marriage New York, Appointment as Judge, Republican Politician. | West Cork History
Pingback: Robert Swanton, Ballydehob, (1764-1840), West Cork, United Irishman, Emigre to New York, Businessmen, Lawyer, US Political Activist, Judge, Home to Die With His Own People, Grave Early Example of Inscription in Irish Old Gaelic Script. | West Cork History