Jonas Proast was born at Colchester and buried at St Mary Magdalen, Oxford on 19 April 1710. According to Thomas Hearne, who described Proast as ‘a worthy, learned Conscientious Man’, his father was possibly German. Proast entered Queen's Hall, Oxford in 1659, graduating BA in 1663 and MA, from Gloucester Hall, in 1666. He was chaplain of Queen's and All Souls Colleges (Oxford), leaving because he was felt unable to give his support to Henry Dodwell (the elder). He was made a prebendary of Brecon in 1687 and Archdeacon of Berkshire in 1698.
From The Continuum Encyclopedia of British Philosophy in Oxford Reference.