Newsletter for the interchange of genealogical data and history of the Trethewy (and variant spellings) families who came mainly from England and Wales. The Trethewy family has origins in the in the Parish of St. Stephens of Brannel in Cornwall, England. One early ancestor was the coroner, Thomas Trethewy who married Elizabeth, daughter of Sir Thomas Arundel. Elizabeth was the widow of William Reskimer (d. 1471). Many Trethewys remained in England,...