 He married, secondly, Goodeth Belt, aunt to Robert Belt, esq., of Bossall, Yorkshire.His son, Christopher, was a well known doctor in Oxford and also delivered lectures in mineralogy at Oxford University, and in 1800, the university purchased a cabinet of minerals from him which was to be part of the establishment of that subject at the university.Christopher Pegge, together with Wall and Bourne was one of the three most important doctors in Oxford in the early nineteenth century.