He was the younger son of Joseph Ferguson of Carlisle, and was articled to the architect John A. Cory.
[1] He spent some years in partnership with Cory, but most of his career was in single-handed practice.
[2] His output included new churches, restoration of existing churches, and work on country houses and public buildings.
The architectural styles he used were mainly Gothic Revival and Norman.
[2] Works designed in association with Cory are denoted by †.