The Cooperating committee of Saskatchewan was formed when representatives of the Presbyterian and Methodist Churches met at Regina, May 2, 1911, in order to facilitate cooperative activity in various localities in Saskatchewan. The formation of this Committee paralleled a similar action taken at the national level by the Presbyterian, Methodist and Congregational Churches. After mid-1923, this committee was called the Provincial Committee on Co-operation.

The Provincial Church Union Committee was formed on July 26, 1923, by representatives of the Saskatchewan Methodist Conference and the Presbyterian Synod of Saskatchewan to take preliminary steps to effect Church Union in Saskatchewan. Representatives of the congregational Churches were also invited to be on the committee.

D.S. Dix was a prominent Presbyterian and then United Church clergyman, whose work included serving as minister to Saskatoon's Westminster Church, as lecturer and professor at the Presbyterian Theological College – which became St. Andrew's College – in Saskatoon, as Principal of St.Andrew's College, and as President of Saskatchewan Conference.

Born in 1875, in Woodbridge (York County), Ontario, Dix trained as a teacher and taught for 6 years before enrolling in the Presbyterian Knox College (University of Toronto). He graduated with a degree in theology, in 1907, and pursued further studies in divinity at Glasgow University (Scotland), the University of Chicago, and Union Seminary (New York). He served as minister to St. James Church (Dartmouth, Nova Scotia), 1908-1910, to Chalmers Church (Guelph, Ontario), 1910-1913, and Westminster Church (Saskatoon), 1913-1919. Dix was also a lecturer and then professor at the Presbyterian Theological College, which became St. Andrew's College (Saskatoon), under its first Principal, Rev. E.H. Oliver. In 1935, Dix was appointed Principal of the College, after the death of E.H. Oliver.

In June 1946, Dix officially retired but remained associated with St. Andrew's College. He served on the United Church Board of Overseas Missions and as President of Saskatchewan Conference (1934-1935). He was Conference Archivist (1947-1953), and chairman of the Conference Historical Committee until his death, in 1956.

Emerick Csendes was a missionary and later United Church minister in Saskatchewan and Manitoba. He was born in Transylvania, southeast Hungary, in October 1886. From 1914-1919, he served in the army and was promoted to the rank of Lieutenant. In 1924, Csendes left to become a missionary in Western Canada. He worked with Hungarian congregations in Manitoba and Saskatchewan – at Bekevar and Otthon – and studied at St. Andrew’s College (Saskatoon), from 1925 to 1928. He served in Winnipeg from 1929 until 1934, when he transferred to the Rothermere Mission field (Battleford Presbytery). In 1940, he returned to Otthon-Halmok Patoral Charge (Yorkton Presbytery), where he remained until 1951, when he transferred to Toronto’s Church of All Nations. He retired around 1956.

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.

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.

The Dominion Commission (officially "The Commission appointed pursuant to The United Church Act, chapter 100 of the Statutes of Canada, 1924") was formed to enable the distribution of property between the United Church of Canada, which about 70% of Presbyterian Churches in Canada joined, and the remaining "non-concurring" Presbyterian Church.

Norman Scott was a United Church minister, who served various congregations in Saskatchewan and worked as Christian Education Field Secretary, in Regina. Ordained in 1954, his ministry included pastoral charges in Uranium City (1954–1956), Shellbrook (1957–1960) and Tisdale (1961–1965). From 1966 to 1973, he served as Field Secretary (Christian Education) in Regina. He was Staff Officer in Edmonton, Alberta (1973–1979), then minister to South Arm, in Richmond, B.C., before retiring, in 1989.

G.G. Heffelfinger was a Presbyterian and later United Church minister, whose Saskatchewan pastorates included Buchanan, Grenfell, Vanscoy, Melfort, Sixth Avenue United Church (Regina), and Watrous.

Born in Nebraska, Heffelfinger and his family moved to Drinkwater, Saskatchewan, in 1907. He attended the University of Saskatchewan, receiving his Bachelor of Arts degree in 1916. During the First World War, he served as a stretcher-bearer with the Canadian Medical Corps (12th Field Ambulance) overseas, and was awarded the Military Medal. After the war, Heffelfinger pursued theological training, at New College (Edinburgh) and St. Andrew's College (Saskatoon), and was ordained by the Presbyterian Church, in 1921. He married Jean Watkins, in 1922.

Heffelfinger served as minister in Buchanan, Saskatchewan, 1921–1924, and Fort William, Ontario, 1924–1929. He received his Bachelor of Divinity degree from United College (Winnipeg). Returning to Saskatchewan, he served in Grenfell, 1929–1933, Vanscoy, 1933–1934, Melfort, 1934–1936, and Oxbow, 1937–1942. After receiving a Bachelor of Education degree, he became Saskatchewan director for the Canadian Legion Educational Services.

After the Second World War, Heffelfinger served as minister at Sixth Avenue (later called St. John's) United Church, in Regina, 1946–1956, then at Atwood and Springfield (London Conference), in Ontario, until he retired, in 1962. Returning to Saskatchewan, he came out of retirement to serve as minister to Watrous, where he remained from 1962–1964.

Oliver Harris (1837-1922) and Ann Francis (1844-1929?) were both born in Devonshire, England. Each sailed to Canada as children, with their families. They married in 1865, in Ontario. In 1882, they took their 6 children – including Lucy (1867-1930) and William F. "Fred" (1868-1950) – and moved to a homestead in the Brandon Hills area of Manitoba. Mr. Harris and his son Fred homesteaded again in 1890, near what became North Portal and Mrs. Harris and other family members joined them in 1893, including Eva (b.1884) and Ella (b.1887?), both born after the family settled in Manitoba. In 1905, Oliver and Ann Harris retired from the farm to the village of North Portal.

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.