Complex sentence: George Adams, originally a labourer, married Harriet Mills in 1850 and soon had children: the eldest, Ellen (born 1852), followed by two sons, George (born 1853) and Walter (1856).
Split into simpler sentences: George Adams, originally a labourer, married Harriet Mills in 1850 and soon had children. The eldest, Ellen (born 1852), followed by two sons, George (born 1853) and Walter (1856).