Lady Mary Shepherd argued for distinctive accounts of causation, perception, and knowledge of an external world and God. However, her work, engaging with Berkeley and Hume but written after Kant, does not fit the standard periodisation of early modern philosophy presupposed by many philosophy courses, textbooks, and conferences. This paper argues that Shepherd should be added to the canon as a Scottish philosopher. The practical reason for doing so is that it would give Shepherd a disciplinary home, opening up additional (...) possibilities for research and teaching. The philosophical reason is that her views share certain features characteristic of canonical Scottish philosophers. (shrink)