John MacLean was a Methodist minister and missionary to Indigenous communities, serving in Alberta, Saskatchewan, Ontario, and Manitoba. He edited The Wesleyan for 1902-1906, served as Archivist of the Methodist Church and Librarian of Wesley College, Winnipeg, 1918-1928. He also studied native culture, and wrote numerous books and pamphlets on the history of Methodism, Western Canada, and native peoples.

F.G. Norris was a Methodist, who was received (on trial) for ministry in Estevan, 1912. He studied at Wesley College (Winnipeg), from 1913 to 1915. He served in the Canadian Expeditionary Force, from 1916 to 1919.

Fred Martin was a Methodist minister, who served in Saskatchewan at North Portal, Dinsmore, Piapot, and Swift Current. He was received on trial at North Portal in 1908 and attended Wesley College (Winnipeg), from 1909 to 1914, before being ordained in 1915. He was minister at Piapot (1916–1917) and supplied at Swift Current (1918–1921).

Herbert Harrison was a Methodist minister, whose served several Saskatchewan congregations, including North Portal, Chamberlain, Regina, Cabri, Estuary, and Cantaur. Prior to his studies, at Wesley College (1913–1914), he was received on trial at North Portal, Saskatchewan, in 1910, and served in Chamberlain (1911) and Regina (1912). Harrison was ordained in 1915 and served in Cabri (1916), Estuary (1917), and Cantaur (1918). He resigned in 1924 and left to join the Methodist Church, in England.

Jesse H. Arnup, (1881-1965) was a Methodist and then United Church minister and later the Moderator of the United Church of Canada. He was born in Norfolk County, Ontario in 1881. In 1905, he was received on trial by the Methodist Church in Estevan, Saskatchewan. He graduated from Victoria College in 1909 and received his D.D. from Wesley College, Winnipeg, in 1924. From 1910 to 1912 he was Secretary of the Layman's Missionary Movement of the Methodist Church, Assistant Secretary of Overseas Missions from 1913 to 1925, and Secretary of United Church of Canada Foreign Missions from 1925 to 1952. He served as Moderator from 1944 to 1946.

The Joint Committee officially convened in April 1904, in Toronto, bringing together appointed representatives from the Congregationalist, Methodist and Presbyterian Churches, to negotiate church union. Meetings continued through to 1908, when the terms written in the Basis of Union were agreed upon and sent to the negotiating churches, for discussion and approval. By 1912, both the Congregationalists and the Methodists had agreed to the terms. The decision was more contentious for the Presbyterian Church, though in 1916, their General Assembly decided to go ahead with the union.
Between 1916 and 1925, the Joint Committee worked to complete the union and defeat those opposing it, including the newly formed Presbyterian Church Association.