Carved out of the woods only 70 years prior, by the late 1800's, the town of Galt was well on its way to establishing itself as a manufacturing base known as "The Manchester of Canada".

Galt's growing wealth and importance was on full display in Thomas Fuller's opulent design for the new Galt Post Office, constructed in 1885.

As Canada's Chief Dominion Architect, Fuller was responsible for the design of numerous public buildings across the country, notably the Centre Block of Canada's Parliament (destroyed by fire in 1916), the Library of Parliament and the Langevin Block in Ottawa.