Complex sentence: Dixon Denham was born in London, the youngest of three children; educated at Merchant Taylors' School, he was articled to a solicitor, but joined the army in 1811.
Split into simpler sentences: Dixon Denham was born in London, the youngest of three children. He was educated at Merchant Taylors' School, and was articled to a solicitor, but joined the army in 1811.