Cirrus@Austlit

In 1850 Thomas Arnold married Julia Sorell, the grand-daughter of William Sorell (q.v).

'Of their four sons and four daughters, William Thomas became a journalist and historian; Mary Augusta achieved fame as the novelist, Mrs Humphry Ward [q.v.], and her daughter, Janet Penrose, also became an author, continued her mother's benevolent works, and married the historian, G. M. Trevelyan. Arnold's third daughter, Julia Frances, married Leonard Huxley, and became the mother of Sir Julian Sorell Huxley, biologist and writer, and the novelist Aldous Huxley.'

(Source: Australian Dictionary of Biography Online)

See also the full Australian Dictionary of Biography Online entry for Thomas Arnold, (1823-1900).