When John Tamblyn Crago was born about 1860, his father, William Crago, was 25 and his mother, Mary Tamblyn, was 23. He married Martha Runnals on 29 September 1883, in Bodmin, Cornwall, England, United Kingdom. They were the parents of at least 1 son and 6 daughters. He lived in St Pinnock, Cornwall, England, United Kingdom for about 10 years and St Winnow, Cornwall, England, United Kingdom for about 30 years. He died on 21 February 1922, at the age of 63.
Cornish (Cornwall): possibly from either of two places in Cornwall: Cregoe in Ruan Lanihorne or Creggo in Mylor.