He was the son of Sir William Rider of Bethnal Green, Middlesex and educated at St John's College, Oxford and the Middle Temple (1664). He married in 1682, Philadelphia, the daughter and coheiress of Sir Robert Barnham, 1st Bt., of Boughton Monchelsea. He purchased his father-in-law's estate in Romney Marsh and c.1685 acquired Boughton Monchelsea Place when it was inherited by his wife.