Raynsford married at Kingsthorpe, on 30 May 1637, Catherine, daughter of Rev. Samuel Clerke, D.D., rector of St. Peter's, Northampton, who survived him, and died on 1 June 1698. By her he had, with five daughters, six sons. Most of his children died early. His eldest son, Richard, matriculated at Queen's College, Oxford, on 15 June 1657, represented Northampton in the first parliament of James II, 1685–7, and died on 17 March 1702/3. His grand daughter Rebecca Brompton married John Garth MP who represented Devizes.