This centennial history of Knox Presbyterian Church in Flos, Ontario traces the congregation’s first hundred years, from its founding in 1878 through a century of worship, community life, and rural heritage. Drawing on photographs, church records, and local recollections, it documents the people, events, and traditions that shaped the church and the surrounding township. Produced for the 1978 centennial, the volume offers a detailed portrait of faith and community in Simcoe County and preserves the legacy of a landmark rural congregation.