Abstract
Catharine Macaulay's discussion of freedom of the will in her Treatise on the Immutability of Moral Truth has received little attention, and what discussion there is attributes a number of different, incompatible views to her. In this paper the account of the nature of freedom of the will that she develops is related to her political aspirations, and the metaphysical position that she adopts is compared to those of John Locke, Samuel Clarke, Joseph Priestley, William Godwin, and others. It is argued that although Macaulay's position is ultimately ambiguous, she is most plausibly interpreted as following Locke's discussion of free will in his Essay Concerning Human Understanding and of inheriting, from him, the ambiguity that we find in her account.