Baptised on 26 August 1614 in the church of St Mary at
Aldingbourne near Chichester, he was the first child of William Peckham (1596-1671), a landowner in that village, and his first wife Mary Raseld (died 1628). In 1632 he was admitted to university at
Magdalen Hall, Oxford, followed by legal training at the
Middle Temple in 1634, and was called to the bar in 1641. Her brother was
Sir Henry Goring, 2nd Baronet. They had ten children, including the second son Henry Peckham (born 1648), who was mayor of Chichester in 1681 and 1686, a wine merchant who built
Pallant House in Chichester. The later Sheriff of Sussex,
Sir Thomas Peckham (1691-1724), was his first cousin twice removed. ==Career==