William Caven was born in Kirkcolm, Scotland and immigrated to Canada in 1847. Caven studied at United Presbyterian Seminary at London, Canada West, and entered the ministry in 1852 and was given the charge of the parish of St. Mary's and Downie. When Downie and St Marys separated into 2 congregations he continued as minister of the Presbyterian Church in St Marys, Ontario until 1866.In 1865 he was called to the Chair of Exegetical Theology in Knox College, Toronto, became principal in 1873, and led the college into full affiliation with University of Toronto. He remained as principal until his death in 1904. The present Knox College building, shown, was completed in 1914.
In 1875, as moderator of the General Assembly of the Canada Presbyterian Church, he was involved in the negotiations which united the Free Church and Kirk in the Presbyterian Church in Canada. Caven was a strong opponent of the Jesuits' Estates Act of 1888 and of denominational schools in Manitoba in the 1890s. At the same time, he was also a strong advocate of interdenomination Protestant union.
George Leslie Mackay was born near Embro, Zorra Township, Canada West on March 22, 1844, the son of Scots immigrants. Mackay decided to become a missionary when a graduate student in Edinburgh after hearing Alexander Duff call for foreign evangelism.
Queen's College was established in Kingston, Ontario by the Presbyterian Church of Canada in association with the Church of Scotland in 1841. The following year classes began in a rented building with 2 professors and 10 students. It was primarily intended to train men for the ministry. Its ties to the Presbyterian Church slowly diminished and in 1912 the separation of church and state was complete with its charter amended becoming Queen's University at Kingston. 
Robert Alexander Falconer was a Canadian clergyman and educator. Son of a Presbyterian minister, he won a scholarship to the University of Edinburgh graduating in 1889. He pursued postgraduate work at Leipzig, Berlin and Marburg, Germany.