| Authorised form of name | Lloyd; John Augustus (1800 - 1854); engineer and surveyor |
| Dates | 1800 - 1854 |
| Nationality | British |
| Place of birth | London, England |
| Date of birth | 01 May 1800 |
| Place of death | Therapia [Tarabya, Turkey], Asia |
| Date of death | 10 October 1854 |
| Occupation | engineer and surveyor |
| Research field | Surveying |
| Engineering |
| Activity | Education:
Private schools at Tooting and Winchester
Career:
Carried out a survey of the Winkworth mines, Derbyshire; the end of the Napoleonic wars prevented him from his desire of joining the army but was sent out to his elder brother, who was king’s counsel at Tortola, where he spent time surveying and learning languages; served on Simón Bolívar’s staff as captain of engineers, attaining the rank of lieutenant-colonel; granted permission by Bolivar to survey the Isthmus of Panama and report on the best means of inter-oceanic communication (1827); progress curtailed by disturbances at Cartagena where Lloyd was badly wounded (1828); completed the Panama survey; recommended a road on the route later adopted for the Panama Canal Railway; returned to England (1830); went to Mauritius and was appointed colonial civil engineer and surveyor-general (1831); climbed the Peter Botte (Pieter Both) Mountain (1831); carried out extensive public works in Mauritius and compiled a new map of Madagascar; left the island, reaching Europe via Ceylon (4 April 1849); sent as British chargé d'affaires to Bolivia (1851); began a mission in the Crimean War to stir up the Circassians, being kept in the Crimea following the battle of the Alma and died there of cholera (1854).
Memberships:
Institution of Civil Engineers 1849 |
| Membership category | Fellow |
| Date of election | 11/03/1830 |
| Age at election | 24 |
| Proposer | Henry Kater; Francis Beaufort; Henry Browne; Charles Konig; John Lewis Tiarks; Edmund Goodenough; Joseph Sabine |
| Relationships | Parents: John Lloyd of King's Lynn, Norfolk
Spouse: Fanny Drummond Lloyd |
| Image | 
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| Sources | Sources:
Bulloch's Roll; DNB
References:
A W Skempton and Joyce Brown, 'John and Edward Troughton, Mathematical Instrument Makers' in NR 1972-3 vol 27 pp 233-262 |
| Virtual International Authority File | http://viaf.org/viaf/41895239 |
| Royal Society code | NA1394 |
| Reference number | Title | Date |
| EC/1830/12 | Lloyd, John Augustus: certificate of election to the Royal Society | |
| MC/3/309 | Letter from John Augustus Lloyd, Port-Louis, Mauritius, to the Secretary of the Royal Society | 4 November 1843 |
| IM/002786 | Lloyd, John Augustus | 1851 |
| MC/1/291 | Letter from John Augustus Lloyd, 19 [John] Adam Street, Adelphi, to John George Children, Secretary of the Royal Society | 16 March 1831 |
| MS/425/10 | Copy letter, John William Lubbock, Treasurer of the Royal Society, to [John] Augustus Lloyd | 17 March 1831 |
| MS/426/77 | Copy letter from J W L [John William Lubbock], Treasurer of the Royal Society; to J R [John Rae] Reid-Bart M P | 12 January 1844 |
| MC/4/161 | Letter from Lieutenant-Colonel [John Augustus] Lloyd, [colonial civil engineer], Mauritius, to the Secretary of the Royal Society | 3 November 1846 |
| MS/426/384 | Copy letter from C R [Charles Richard] Weld, the Assistant Secretary of the Royal Society; to Captain [Sidney?] Shippard | 9 June 1849 |
| MS/170 | Documents relating to John Augustus Lloyd's paper on the difference of level of the Atlantic and Pacific Oceans | 1830 |
| PT/19/13/2 | Plate, 'Navy well, Sheerness Yard' by unknown artist | [1830] |
| PT/19/13/1 | Plate, 'Situation of the standard marks in the Isles of Grain and Sheppey' by unknown artist | [1830] |
| PT/19/11 | Letter, regarding tides in Sheerness from J [James] Mitchell to John Augustus Lloyd | 6 June 1830 |
| MC/1/233 | Letter from John Augustus Lloyd, 5 Whitehall Place, Gravesend, to Davies Gilbert, President of the Royal Society, Bridge Street, Westminster | 5 June 1830 |
| MC/1/249 | Letter from John Augustus Lloyd, 2 Circus Street, Greenwich, to Davies Gilbert, President of the Royal Society | 19 July 1830 |
| PT/19/13 | Plates, relating to 'An account of operations carried on for ascertaining the difference of level between the River Thames at London Bridge and the sea; and also for determining the height above the level of the sea, &c. of intermediate points passed over between Sheerness and London Bridge' by John Augustus Lloyd | [1830] |
| MC/1/248 | Letter from Dr. Peter Mark Roget, [Secretary of the Royal Society], to [John Augustus] Lloyd | 17 July 1830 |
| MC/1/251 | Letter from John Augustus Lloyd, Greenwich, to Davies Gilbert, President of the Royal Society, Bodmyn, Cornwall | 28 July 1830 |
| PT/19/12 | Letter, correcting tidal observations from John Hansfield to John Augustus Lloyd | 17 December 1830 |
| MC/1/262 | Letter from John Augustus Lloyd, Admiralty Office, to Davies Gilbert | 10 December 1830 |
| MC/1/289 | Letter from John Augustus Lloyd, 19 [John] Adam Street, Adelphi, to [Prince Augustus Frederick], the Duke of Sussex, President of the Royal Society, | 15 March 1831 |
| MC/1/300 | Letter from James Hudson, [Assistant Secretary of the Royal Society], to the Royal Society | 5 April 1831 |
| MC/3 | Volume 3 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1839-1843 |
| MC/3/116 | Letter from Major Edward Sabine, 3 St James's Place, to John Frederic Daniell, Foreign Secretary of the Royal Society | 17 November 1840 |
| MC/3/117 | Letter from John Frederic Daniell, Foreign Secretary of the Royal Society, to Captain [John Augustus] Lloyd | 20 November 1840 |
| MC/3/276 | Letter from John Augustus Lloyd, Port-Louis, Mauritius, to the Secretary of the Royal Society | 3 May 1843 |
| PT/19/10 | Observations, from 'An account of operations carried on for ascertaining the difference of level between the River Thames at London Bridge and the sea; and also for determining the height above the level of the sea, &c. of intermediate points passed over between Sheerness and London Bridge' by John Augustus Lloyd | [1831] |
| MC/1 | Volume 1 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1800-1831 |
| MS/426/250 | Copy letter from C R [Charles Richard] Weld, the Assistant Secretary of the Royal Society; to Lieut Col J A [John Augustus] Lloyd, Mauritius | 15 January 1847 |
| MC/4 | Volume 4 of miscellaneous correspondence regarding business matters, sent to the Royal Society | 1844-1850 |
| AP/23/35 | Unpublished paper, 'Second series of approximate deductions made from about 50,000 observations taken during the years 1836, 1837 & 1838 at the Port Louis Observatory Mauritius, four times each day' by J A [John Augustus] Lloyd | 30 October 1839 |
| AP/21/5 | Unpublished observations, 'Meteorological deductions made from observations made at the Observatory, Port Louis, Mauritius' by John Augustus Lloyd | 1837 |
| MS/257/2/263 | Letter from John Frederick William Herschel, Feldhausen to John Augustus Lloyd, Port Louis, Mauritius | 12 March 1835 |
| HS/19/242 | Table of expenses for the Port Louis observatory [Mauritius], by John Augustus Lloyd | 31 October 1837 |