By 1894, a "pedal organ" had been approved, to the consternation of the more conservative members of the church who regarded it as "the devil's instrument." By 1919, the church was ready to expand again, and the sanctuary was renovated to assume the form that exists today. The old organ was replaced with a new $6,625 three-manual Casavant Organ, the chancel was extended through the arch and the stained glass window of the Last Supper was installed in memory of the men in the congregation who died in the Great War, including the son of the minister. The window was donated by Cecil Marlatt, owner of a great family tannery, who died 8 years later bankrupt. These renovations, which cost $20,300, also saw the addition of what is now R.G. MacMillan Hall. The 1925 Union crisis and the creation of the United Church of Canada, along with the Great Depression, brought about a period of hard times for the church and it wasn't until 1949 that the congregation could hold a mortgage-burning ceremony. In 1955 the boom following the arrival of the Ford Motor Company was being felt and the church expanded again. Completed in 1956, the new section along Dunn Street now includes the parlour the library, counting room, office, and the nursery. In 1965, a hall was built under the church at a cost of $80,000, to provide additional space for the church school. It was named for C.K. McNicoll, the minister who guided Knox from its centennial in 1933 to 1961. Ministers Samuel Sessions (American) Robert Murray (Church of Scotland) James Nisbet (Free Church—Canada Presbyterian Church) Robert Scott (CPC) William Meikle (CPC, Presbyterian Church in Canada) S.S. Craig John McNair James E. Munro (Minister left to join United Church of Canada) William Wallis Weddereburn C.K. Nichol Robert G. MacMillan Helen Goggin (Deaconess, Assistant Minister, became professor at Ewart College) Cam Taylor Harry McWilliams Michael Marsden Jacqui Foxall External links Church website Oakville Images: Photo History of Knox Buildings and structures in Oakville, Ontario Presbyterian churches in Ontario 19th-century Presbyterian church buildings in Canada