Thomas Arndell was born 17 August 1799 in Cattai, New South Wales, Australia to Thomas Arndell (1753-1821) and Elizabeth Dalton (1766-1843) and died 25 February 1865 Cattai, New South Wales, Australia of unspecified causes. He married Sophia Loder (1803-1887) 1 January 1824 St Matthews in Windsor, New South Wales, Australia.
Children
| Name | Birth | Death | Joined with |
| Thomas Arndell (1825-1907) | 4 February 1825 "Caddie", Cattai, New South Wales, Australia | 30 October 1907 "Macquarie", Windsor, New South Wales, Australia | Mary Hall (1829-1894) |
| Jane Elizabeth Arndell (1827-1897) | 14 May 1827 Cattai, New South Wales, Australia | 1897 Singleton, New South Wales, Australia | George Andrew Loder (1826-1913) |
| George Arndell (1829-1898) | 28 July 1829 Cattai, New South Wales, Australia | 15 July 1898 Cattai Creek, Cattai, New South Wales, Australia | |
| James Andrew Arndell (1831-1894) | 14 November 1831 Cattai, New South Wales, Australia | 12 August 1894 "Glen Dhu", Blandford, New South Wales, Australia | Louisa McDougall (1839-1888) |
| Sophia Arndell (1834-1914) | |||
| Louisa Charlotte Arndell (1836-1914) | |||
| Eliza Frances Arndell (1838-1916) | |||
| Sarah Amelia Arndell (1841-1933) | |||
Footnotes (including sources)
| ‡ General |
|
| ₪ Wedding |
|
| ¶ Death |
|