When Thomas Cunnington was born on 5 May 1802, in Morborne, Huntingdonshire, England, United Kingdom, his father, Clement Cunnington, was 33 and his mother, Sarah Charter, was 22. He married Mary Ann Burton on 23 January 1825, in Huntingdonshire, England, United Kingdom. They were the parents of at least 6 sons and 3 daughters. He lived in Chesterton, Huntingdonshire, England, United Kingdom in 1841 and Northamptonshire, England, United Kingdom for about 10 years. He died in December 1875, in London, Middlesex, England, at the age of 73.