| Surname | Marten |
| First Name(s) | Thomas Powney |
| Date of Rank as Writer Writer | 1826, Apr 30 |
| Execution of Covenant | 1826, Jan 6 |
| Notification of Appointment from the Honourable Court of Directors | 1825, Sep 30 |
| Arrived in India | 1826, Sep 1 |
| Date 5 | 1827, Aug 2: Assistant to the Magistrate and Collector of Ghazeepore. (Never joined.) |
| Date 6 | 1827, Sep 6: Doing Duty as an Assistant to the Magistrate and Collector of Burdwan. |
| Date 7 | 1827, Oct 11: Officiating Collector of Burdwan. |
| Date 8 | 1827, Dec 6: Officiating Assistant to the Sub-Treasurer. |
| Date 9 | 1827, Dec 20: Officiating Assistant to the Collector and Salt Agent of the 24-Pergunnah. |
| Date 10 | 1828, Jan 31: Assistant to the Magistrate and Collector of Burdwan. |
| Date 11 | 1828, Feb 28: Register of the City Court of Moorshedabad. |
| Date 12 | 1828, May 15: Assistant to the Collector and Salt Agent at Baullooah. |
| Date 13 | 1828: Officiating Collector of Burdwan. |
| Date 14 | 1828,Jun 26: Acting Register, and Assistant to the Magistrate of Tipperah. |
| Date 15 | 1829, Feb 21: In Charge of the Collector's Office at Mymensing. |
| Date 16 | 1829, Nov 3: Officiating Judge and Magistrate of Tipperah. |
| Date 17 | 1829, Dec 22: Officiating Collector of Tipperah. |
| Date 18 | 1830, Nov 9: Officiating Salt Agent at Bullooah. |
| Date 19 | 1830, Nov 16: In Chage of the Office of Collector at Bullooah. |
| Date 20 | 1831, Apr 26: Officiating Judge and Magistrate of Tipperah. |
| Date 21 | 1831, Jul 19: Officiating Collector of Revenue and Customs, and Superintendent of Salt Chowkies at Dacca. |
| Date 22 | 1831, Aug 9: Acting Collector of Tipperah. |
| Date 23 | 1831, Nov 4: Collector of Tipperah. |
| Date 24 | 1832, Mar 6: Officiating Joint-Magistrate and Deputy Collector of Sherepore. |
| Date 25 | 1832, Jun 5: Officiating Judge and Magistrate of Burrisaul. |
| Date 26 | 1832, Aug 14: Deputy Collector at, and Officiating Magistrate of, Rungpore. |
| Date 27 | 1832, Aug 28: Officiating Collector of Burrisaul. |
| Date 28 | 1832, Dec 24: Officiating Civil Judge of Rungpore. |
| Date 29 | 1833, Dec 23: In Charge of the Office of Civil and Sessions Judge of Rungpore. |
| Date 30 | 1835, Jan 16: Officiating Salt Agent at Tumlook. |
| Date 31 | 1835, Mar 24: Officiating Magistrate and Collector of Tipperah. |
| Date 32 | 1835, Aug 19: Salt Agent at Tumlook. |
| Date 33 | 1839, Dec 26: Officiating Opium Agent at Benares. |
| Date 34 | 1842, Jan 26: Officiating Opium Agent at Benares. |
| Date 35 | 1842, Feb 14: Opium Agent at Benares. |