1910
- The C.P.R. roundhouse was in operation in December with two freight trains leaving daily, one going east and one west. While this building is sometimes referred to as a "roundhouse" (usually found in large railroad divisional points) in fact it was an engine shed, with a spur line, likely holding no more than two locomotives. These were brought into the building to keep them warmed up, and for the purpose of cleaning and repairs. The train would proceed in either direction by using rails shaped in a "Y" on which the train would back up, then the rails were moved using the "switch" device. The "Y" lines were located around where the Yorkton Tourism offices are today. (Sources: The Yorkton Enterprise, and interview with retired CPR Conductor, John Maluga.)
- Father Achille Delaere founded St. Mary's Ukrainian Catholic parish.
- The Agricultural Society was absorbed by the Yorkton Agricultural and Industrial Association Ltd.
- Prime Minister Wilfrid Laurier visited Yorkton.
- St. Gerard's Roman Catholic Church and Monastery were built this year.
- Yorkton received long distance telephone service.
1911
- Levi Beck, Yorkton's "Merchant Prince" was elected Mayor.
- The citizens of Yorkton turned on their electric lights during the spring of this year.
- Yorkton shipped 2,600,000 bushels of grain. 125,000 remained in the farmers' hands.
- The Yorkton High School was officially opened on December 20th by Lieutenant-Governor Brown and Dr. Murray, the First President of the University of Saskatchewan. Total cost of the structure and the equipment was $75,000.00.
- The population of the town was 2,309.
1912
- January 2nd, a company of 24 from Sydney Australia, known as the "Lilliputians" were in Yorkton for a performance and stayed overnight at the Balmoral Hotel.
- The Yorkton Enterprise reported that Levi Beck's Yorkton Flour Mill was regarded as the pioneer industry of the town, making products that have become household words in eastern Saskatchewan.
- The Hudson Bay Company erected a new building this year.
- Yorkton boasts to be the "largest and most prosperous community in eastern Saskatchewan."
- A major fire occurred on April 19th when the Canadian Grain Elevator was badly damaged.
- The Rural Municipality of Wallace was organized.
1913
- Charles Donald Livingstone, a lawyer became Mayor. He resigned within a year to join the army. He achieved the rank of Major, and died in battle in 1916.
- On July 3rd, 1,635 Yorkton people visited a "Made in Canada" touring train of exhibits of a great variety of manufactured products.
- The Rural Municipality of Orkney was organized.
1914
- World War 1 began. Yorkton became the squadron training base for such areas as Indian Head, Regina, Weyburn and Moosomin. The Royal Hotel became a mess hall for Yorkton recruits.
- Chief Peepeetch of the Little Bone Reserve was interviewed by a reporter of “The Enterprise”. He gave an account of the local incidents surrounding the events of the 1885 Riel Uprising.
- The Ladies Auxiliary of the Order of Odd Fellows was founded this year.
1915
- A barrel of oil exploded in the basement of T. H. Collacot's Hardware and caused a disastrous fire.
- Prohibition in Saskatchewan was enacted July 1st, shutting down the hotel bars, resulting in province-wide illegal manufacturing of booze. The Bronfman brothers began to capitalize on all the loopholes of the complicated prohibition laws.
- Simpson School was built on Melrose Avenue.
1916
- The Sacred Heart Institute, a boarding school and orphanage was opened under the ministry of the Sisters Servants of Mary Immaculate.
- Electric lights were installed in early April at these locations: two lights between Betts Avenue and First Avenue; one between First and Second Avenue North; two between Second Avenue and Third Avenue North; and one between Third and Fourth Avenue North.
- At the October 13th Council Meeting a motion was passed to reduce Harry Bronfman's water account for the year by 40%. This was in consideration of the lavatories and wash houses in the premises known as the Balmoral Hotel, being kept open for the use of the public.
1917
- John F. Reid was elected Member of Parliament for the Mackenzie Constituency.
- Thomas Garry defeated J.A.M. Patrick in the Provincial election.
- The Dominion Lands Office located in the J.J. Smith Block on Argyle Street was closed this year. All available homestead lands in the district had been disposed of.
- St. Magnus School was formally opened on November 1. (Yorkton Enterprise Oct. 6, 1965.)
1918
- Lieutenant Edmund De Wind, a former Yorkton banker was killed while defending a position near Grougie, France. He was awarded the Victoria Cross posthumously.
- A Yorkton landmark, the Royal Hotel was torn down.
- The Yorkton Literary Society held a meeting at the Collegiate Institute on April 8th. The purpose was to study Longfellows' "Evangeline."
- The Dominion Daylight Saving Act was discussed at a town council meeting of April 26.
1919
- A "Peace Arch" was erected on the corner of Third Avenue and Broadway to welcome returning servicemen.
- Harry Bronfman erected a building on the east side of the Balmoral Hotel and opened the CANADA PURE DRUG COMPANY.
- A “Grand Peace Concert" was held in the Town Hall on March 11th in aid of the Red Cross funds. A chorus of 40 voices sang old songs, and an arrangement of the "National Anthem of the Allies." There were also male choruses, male quartets, mixed and ladies quartets, and local violin soloists such as Miss Gertrude Oathwaite.
- In a colourful ceremony Right Reverend Bishop Budka laid the cornerstone of St. Joseph's College on September 7th of this year.
- Construction began on the Provincial Court House on Darlington Street. It was designed by Saskatchewan’s first Provincial Architect, Maurice Sharon. Completed in 1920, it was officially opened in February 1921.
- Yorkton Skating Rink was officially opened on December 4. (Yorkton Enterprise Oct. 6, 1965.)