Argument

This paper traces the changing fortunes of natural theology in two generations of an English family. The group is represented in the first generation by the Unitarian radical, William Frend, and in the second by the spiritualist Sophia Frend De Morgan and her husband, the mathematician Augustus De Morgan. The Frend/DeMorgans were distinguished from the naturalistic Darwins by their commitment to reason; they were a quintessentially urban group whose impulses to natural theology flowed from a God they encountered through their minds. For William Frend, natural theology was rooted in a tightly disciplined, linguistic view of reason that linked theological and mathematical understandings; in the De Morgan's generation, however, understandings of mathematics and of language changed in ways that undercut the power of Frend's reasoned approach. In its rise and fall this family story of reasoned theology is co-temporal with the natural theology that was wrecked on the rocks of Darwinian evolutionary theory.