Twyne. Whytehead did apparently provide some assistance, but there is no evidence that the work is all his; Wood frequently reported gossip as fact. Billingsley's copy of Euclid found its way to Princeton College and Halsted described it, putting to rest the claims that the translation had been made from the Latin and that it was not Billingsley's own work. Family By the remarriages of his mother after his father's death, Henry Billingsley became the stepson successively of Sir Martin Bowes (died 1567), and then of Thomas Seckford, Esquire (died 1587). His mother died in 1586. He married five times and had at least ten children. The majority of his children were born to his first marriage to Elizabeth Bourne (died July 1577). His third wife Katherine Killigrew (died 1598) came from the prominent Cornish family whose seat was at Arwenack near Falmouth. He purchased, with his son Henry, Siston Court, Gloucestershire c.1598 from Arthur Player of Westerleigh, who had acquired it in 1595. His daughter Elizabeth married the cloth merchant, Sir John Quarles (not to be confused with the later poet John Quarles). References Bibliography Diana M. Simpkins "Early editions of Euclid in England", Annals of Science, Volume 22, Number 4, December 1966. George Bruce Halsted, "Note on the First English Euclid", American Journal of Mathematics, Vol. 2, No. 1. (Mar., 1879), pp. 46–48. External links Several pictures of a copy of Billingsley's Euclid 16th-century births Year of birth unknown 1606 deaths English merchants Greek–English translators 16th-century English translators Sheriffs of the City of London 16th-century lord mayors of London English MPs 1604–1611 Members of the Parliament of England for the City of London Alumni of St John's College, Cambridge