Rebellion of 1886—were shipped up this line from Toronto to Owen Sound, and from there by boat to Lake Superior. However, the economic boom did not extend to the nearby village down in the valley. Although the train station was relatively close, new businesses balked at moving to the village, since their goods to be shipped by rail would first have to be hauled by horses out of the steep valley. Economic growth stagnated, and the population remained below 1000. Twentieth century At the turn of the 20th century, the Munshaw Hotel continued to serve alcohol despite the increasingly popular temperance movement, but local teetotalling businessmen raised funds in 1908 to build a hotel called Park House as a "dry" alternative. The hotel remained in business until the 1950s, and is now a private residence. In 1910, the Artemesia Rural High School was built in Flesherton; students either rode from their farms to attend classes or boarded at Park House. That same year, a block of businesses on the north-east corner of the hamlet's main intersection, known as the T.J. Sproule Block, burned down due to unknown causes, destroying a quarter of the local businesses. In 1912, five years after the death of William Flesher in 1907, Flesherton was incorporated as a village. The following year, the coming of the automobile resulted in Flesherton's first gas station, attached to a hardware store. Two years later, in 1914, World War I broke out in Europe. Eighty-four local men enlisted in the Canadian Expeditionary Force, a significant percentage of the small village's population. Several were decorated for bravery, and 19 volunteers—almost 1 in 4—were killed. In 1920, the children of William Flesher donated land beside the Boyne River, close to the site of Flesher's original grist mill, for a Memorial Park. A cenotaph was erected, with the names of those who had died on the front, and those who had survived on the back. In 1917, the first airplane landed in Flesherton, piloted by Alf Witten of Camp Borden. In 1920, the Toronto-Sydenham Road that ran through Flesherton was assumed by the province and became King's Highway 10. Likewise in the 1930s, the Durham Road as far as the centre of Flesherton was assumed by the province as the easternmost extension of King's Highway 4. (In the 1970s, Highway 4 was extended from the centre of Flesherton eastward a further 12 km