Arthur Turnour Atchison was born on May 16, 1848, in Bath, Somerset County, England.

He was educated in Brighton College and in 1866, he went to Christ’s College, Cambridge. During his residence at Cambridge, he acquired considerable distinction as an oarsman and a gymnast. There he received both his B.A. (1870) and his M.A. (1873) degrees in Civil engineering and became a member of the Association of Civil Engineers. He assisted in superintending the construction of the Alexandra Docks in Wales. After spending some time in the office of Mr. Bailey Denton, a surveyor and civil engineer, he started his own company in London in 1877. His chief work related to the preparation of reports and plans for parliamentary deposit in connection with railways, tramways, and schemes for water supply. He assisted in the construction of the Shanghai Waterworks and in the preparation of a scheme for the water supply of St. Vincent. In 1872, Atchison became a member of the British Association and in 1874, he undertook the duties of Secretary of Section G (Mechanics). He filled the same office again in 1877, and from that time continuously until 1886, accompanying his Section to Montreal in 1884. He contributed articles on mechanical subjects to Nature. He was also a Secretary of the Association at Birmingham, 1886; Manchester, 1887; Bath, 1888, and Newcastle, 1889. In 1875, he visited Ceylon and in 1881, Florida to report on some proposed work.

In 1876, he married Rachel Rogers (1853–1940). He died of consumption on April 21, 1891, in Mentone, Provence-Alpes-Côte d'Azur, France.

Atelier Muse-Art was created in 1990 as a non-profit arts organization in the Pointe Saint-Charles district of Montreal. Initiated by Gisèle Normandin and a group of local artists, the organization's goal was to provide access to the arts through the creation and sharing of cultural programs with other community groups and the general public. During its existence, from 1990 to 2005, the Atelier Muse-Art organized and produced a number of visual arts exhibitions, theater productions and art workshops.

William Henry Atherton was born on November 15, 1867, in Salford, Lancashire, England.

He was a British-born Canadian writer, historian, academic, and scholar. He was educated at Stonyhurst College, a Roman Catholic school. Upon completing his degree in philosophy and theology, he began his career as a teacher in classics at Stonyhurst College and Beaumont College in Berkshire. In 1907, Atherton emigrated to Calgary, Alberta, Canada, to follow his elderly parents. For one year, he taught at a school in Alberta. In 1908, he relocated to Quebec, where he became a faculty member at Loyola College, an anglophone Jesuit college and Collège Notre-Dame du Sacré-Cœur from 1908 until 1918. In 1918, he became a professor of English literature at the Laval University of Quebec - Montreal annex, which became the University of Montreal, where he remained a faculty member until his retirement in 1948. He also taught at the Marguerite Bourgeoys College. For over twenty years, he served on the examining board for Latin and letters for medical students at McGill University, Laval University, and the Université de Montréal. He was an active member of Montreal's literary community, writing fifty books. He wrote the books “Montreal, 1535-1914” (3 vols., 1914), “Old Montreal in the early days of British Canada, 1778-1788” (1925) and “History of the harbour front of Montréal since its discovery by Jacques Cartier in 1535” (1935). He also edited the four-volume work, “The Storied Province of Quebec” (1931-32) and was responsible for writing the volume on Montreal. Atherton was the first in Canada to give broadcast conferences on literature, history, and social reforms, aired on CFCF, a Montreal radio station from 1945. He was a historian of the British Empire Society, the Canadian Catholic Historical Society, and the Catholic Historical Society of Montreal. Rue Atherton was named in his honour by the City of Montreal in 1955. The Williams H. Atherton Award for Excellence in History is presented on an annual basis at Loyola College.

He died unmarried on July 6, 1950, in Montreal, Quebec.