In 1908, the Basis of Union was formulated that would eventually lead to the creation of the United Church of Canada in 1925. Coinciding with this spirit of unity, the first Union church (Presbyterian and Methodist) was set up in Melville, Saskatchewan in 1908, followed a short time later by the church in Frobisher. In 1912, a committee of Union Churches approached the national church courts of the Presbyterian, Methodist, and Congregational denominations in order to seek affiliation with the parent churches. This committee formed the nucleus of what would become the General Council of Union Churches of Western Canada. An Advisory Council, with representatives of the Union Churches and the parent churches, was established in 1914 as a means of creating the sought after link between the Union Churches and the parent churches.

Hafford Hospital was first built around 1922, by the Missionary Society of the Methodist Church. The first superintendent was the Rev. G. Dorey, who would later become Moderator of the United Church of Canada (successor to the Methodist Church in Canada). Dr. S.M. Scott was the first doctor to serve the hospital, followed by Dr. Rose, who was later joined by Dr. Paulson. The Hafford Hospital Ladies Aid Society, formed 1924, was involved in raising money to support hospital activities. After financial difficulties in the 1930s, the hospital was eventually closed, in 1941, due to lack of funds.

In 1946, the R.M. of Redberry and the Village of Hafford bought the building and its equipment from the Missionary Society, then re-opened it as the Hafford Union Hospital.

R.W. Hardy was a Methodist and later United Church minister, who served congregations in Saskatchewan and British Columbia. He was born in 1890 and spent his childhood in Ontario, before attending the University of Toronto. He was ordained and married in June 1921, in Whitby, Ontario. He moved west and was assigned by the Methodist Church to the hospital in Hafford, Saskatchewan. From 1925 to 1930, Hardy served as a United Church minister in Speers and then Maymont, before transferring to Cranbrook, B.C.

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.

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.

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.

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).