Complex sentence: However, his nonconformist background came to the fore again when he became friendly with William Durning around 1817, having rented a cottage from another member of the Durning family, and on 1 September 1820 he married William's daughter, Emma.
Split into simpler sentences: However, his nonconformist background came to the fore again when he became friendly with William Durning around 1817, having rented a cottage from another member of the Durning family. On 1 September 1820 he married William's daughter, Emma.