"The trial of Ambrister during the Seminole War: Florida" (illus. from 1848)
"The trial of Ambrister during the Seminole War: Florida" (illus. from 1848)

The Arbuthnot and Ambrister incident occurred in 1818 during the First Seminole War. American General Andrew Jackson invaded Spanish Florida and captured and executed Alexander George Arbuthnot and Robert C. Ambrister, two British citizens charged with aiding Seminole and Creek Indians against the United States. Arbuthnot and Ambrister were tried and executed in modern Bay County, Florida, near what continues to be called Court Martial Lake, near Sand Hills. Jackson's actions triggered short-lived protests from the British and Spanish governments and an investigation by the United States Congress. Congressional reports found fault with Jackson's handling of the trial and execution of Arbuthnot and Ambrister, but Congress chose not to censure the popular general.

Robert Chrystie Ambrister (1797–1818) was a British citizen and a native of Nassau, Bahamas. Ambrister had served in the Royal Navy as a volunteer and as a midshipman between 1809 and 1813, when he returned to the Bahamas. During 1814–1815, he served in Spanish Florida as an auxiliary 2nd lieutenant of the British Corps of Colonial Marines, commanded by Brevet Major Edward Nicolls of the Royal Marines.[1][2] Discharged from the military in Nassau in 1815,[3][4] the former Marine lieutenant returned to Spanish Florida in 1817 with his fellow former Marine, Brevet Captain George Woodbine, and the Scottish soldier of fortune Gregor MacGregor.[5]

Alexander (George) Arbuthnot was an older man, a Scottish merchant, translator, and diplomatic go-between, on occasion, who had been present in Florida since 1803.[6] Jackson's execution of Arbuthnot, Ambrister, and at least two prominent Creek-Seminole leaders (Josiah Francis and Hoemotchernucho) was perceived, both in Great Britain and elsewhere, as an act of barbarity violating the conventions of warfare.[7]


  1. ^ Niles' weekly register, Baltimore, Oct.3,1818,No.6-Vol.XV, pp 84-86
  2. ^ British and foreign state papers Volume 6, pg 434 Ambrister's Commission 'Whereas, I have thought fit to send a Detachment of the Royal Marine Corps to the Creek Nations, for the purpose of training to arms, such Indians and others as may be friendly to, and willing to fight under, the Standard of His Majesty: I ..appoint you as an Auxiliary Second Lieutenant, of such Corps of Colonial Marines...Given under my hand and seal, at Bermuda, this 25th day of July, 1814'[1]
  3. ^ British and foreign state papers Volume 6, p. 483, Memorial to R C Ambrister mentions that he and Nicolls sailed 'to Apalachicola, from whence he proceeded to the Creek Nation, where he served until those Forces were disbanded, upon the termination of hostilities with the Americans, when he returned to the said island of New Providence' and disembarked there from the Carron on 6 May 1815
  4. ^ "Royal Marines on the Gulf Coast". Retrieved 19 January 2014. Extracted information from the muster of HMS Carron
  5. ^ The Florida Historical Quarterly, Vol. 23, No.1 (July 1944), pp. 39-44 [2]
  6. ^ Arbuthnot and Ambrister incident Summary/bookrags.com
  7. ^ Niles' weekly register, Baltimore, October 3, 1818, No. 6, Vol. XV, pp. 84-86

Further reading