 Some think he went there in 1631, but the actual date is disputed.On 14 April 1635, Clavell married a Dublin heiress, who was noted to be younger than ten years old.Clavell's records of cures from his times as a doctor are recorded in a manuscript, "Bodleian MS. Rawl, D. 399", which dates from 1636 and places Clavell in Ireland around this time.