Complex sentence: On 24 November 1824 he married Elizabeth Irvine (died 1864); the couple had three children, William (1824--1868), Walter (1825--1901), and Charles (1837--1918).
Split into simpler sentences: On 24 November 1824 he married Elizabeth Irvine (d: 1864). They had three children, William (b: 1824 d: 1868), Walter (b: 1825 d: 1901) and Charles (b: 1837 d: 1918).