Ellen gave birth to at least ten children from 1831 to 1857. Their first daughter, Margaret, was baptised in Buttevant in County Cork. In 1835, Their first son, Thomas, was born in Chatham in Kent after the 28th Regiment was transferred to England. Their other eight children were born in Australia.
John Clarke ~ 1837, Sydney
Michael Clarke ~ 1840, Williams River
Catherine Clarke ~ 1842, Irish Town near Clarence Town
Agnes Clarke ~ 1844, Irish Town near Clarence Town
Mary Anne Clarke ~ 1846, Irish Town near Clarence Town
William Clarke ~ 1849, Irish Town near Clarence Town
Joseph Clarke ~ 1851, Irish Town near Clarence Town
Francis Clarke ~ 1857, Mill Creek near Stroud