| 11. | Blacker took over from John Hodgson as Surveyor General of India in 1823.
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| 12. | He subsequently rose to the rank of Surveyor General of Pakistan.
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| 13. | He was appointed assistant surveyor general for the province in the same year.
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| 14. | Tasker was Surveyor General of the Eastern Shore from October 1747 to 1755.
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| 15. | As the Surveyor General of the city, Cortelyou worked under Governor Peter Stuyvesant.
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| 16. | In 1799, he was appointed deputy surveyor general for Lower Canada.
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| 17. | John was the son of Upper Canada's Surveyor General, Thomas Ridout.
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| 18. | The Commissioners were Gouverneur Morris, a Surveyor General, Simeon De Witt.
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| 19. | In 1874, he served as surveyor general of logs and lumber in the.
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| 20. | Her grandfather, St Vincent Whitshed Erskine had been Surveyor General of South Africa.
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