| 11. | In March 1838 Sprent was appointed permanent assistant surveyor and first-class assistant surveyor in 1847.
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| 12. | There, Theophilus Heale engaged him as a sub-assistant surveyor.
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| 13. | His rose rapidly in the civil service, becoming Assistant Surveyor-General by 1856 and Surveyor-General by 1861.
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| 14. | He became an Assistant Surveyor in 1947.
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| 15. | Sprent was appointed temporary assistant surveyor in August 1833 and was soon placed on the trigonometrical survey.
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| 16. | Its driving force for over thirty years was Leo Meyer, a one-time assistant surveyor for Erith Council.
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| 17. | He was hired by the Canterbury Association and was made one of the assistant surveyors of Ellesmere districts.
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| 18. | In 1862, Carey emigrated to Western Australia, where he became an assistant surveyor for the colony's Survey Department.
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| 19. | In 1853, Captain Samuel Augustus Perry, Assistant Surveyor General was sent to resurvey the site for urban settlement.
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| 20. | Ravindran, 33, contractor K . Mani, 33, assistant surveyor V . Krishnan, 32, and unemployed C . Appadurai, 33.
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