| Surname | Thomason |
| First Name(s) | James |
| Date of Rank as Writer | 1822, April 30 |
| Execution of Covenant | 1822, May 31 |
| Notification of appointment from the Honorable the Court of Directors | 1822, June 26 |
| Arrived in India | 1822, Dec 19 |
| Date 5 | 1823, Dec 11: Assistant to the Register of the Sudder Dewanny and Nizamut Adawlut. |
| Date 6 | 1824, Oct 18: Second Assistant to the Register of the Sudder Dewanny and Nizamut Adawlut. |
| Date 7 | 1826, Feb 2: Officiating Register and Assistant to the Magistrate and Collector of Jungle Mehals. |
| Date 8 | 1826, Mar 2: First Assistant to the Register of the Sudder Dewanny and Nizamut Adawlt. |
| Date 9 | 1826, Nov 3: Officiating Judge of Jungle Mehas. |
| Date 10 | 1827, Feb 13: Proceeded to Europe on Furlough. |
| Date 11 | 1828, Nov 7: Returned to India. |
| Date 12 | 1829, Feb 17:Deputy Register of the Sudder Dewanny and Nizamut Adawlut, and Preparer of Reports. |
| Date 13 | 1829, June 9 Officiating Judge and Magistrate of the Suburbs of Calcutta, and Superintendent of the Allipore Jail. |
| Date 14 | 1830, July 22: Officiating Assistant to the Secretary to Government in the Territorial Department. |
| Date 15 | 1830, Oct 14: Officiating Deputy Secretary to Government in the Territorial Department. |
| Date 16 | 1831, Jan 4: Deputy Secretary to Government in the Judicial and Revenue Department. In Charge of the Department. |
| Date 17 | 1831, Aug 9: Member of the General Committee of Public Instruction. |
| Date 18 | 1832, Sept 18: Magistrate, Collector, and Deputy Opium Agent at Azimghur, and Continuing to Officiate as Secretary to Government in the Judicial and Revenue Department. |
| Date 19 | 1837, Mar 2: Officiating Secretary to the Lieutenant Governor of the North Western Provinces in the Judicial and Revenue Department. |
| Date 20 | 1839, Feb 28: Proceeded to Europe on Private Affairs. |
| Date 21 | 1840: Jan 10: Returned to India. |
| Date 22 | 1840, Mar 7: Officiating Secretary to the Government of the North Western Provinces. |
| Date 23 | 1840, May 1: Secretary to the Government of the North Western Provinces. |
| Date 24 | 1841, Oct 20: Officiating Extra Member of the Sudder Board of Revenue, with Ordinary Powers of a Member of the Board. |
| Date 25 | 1842, Mar 2: Member of the Sudder Board of Revenue, in the North Western Provinces. |