Edwin Eugene Howell was born on March 12, 1845, in Genesee Township, near Rochester, New York.

He was an American geologist, cartographer, and pioneer of the commercial relief model in the United States. He studied at the University of Rochester and became a geologist of the U.S. Geological Survey in surveys west of the Rocky Mountains (1872-1874). Howell's relief models earned an international reputation for impeccable technique, geographic accuracy, sound construction, and overall artistry. In 1875, he created the first commercial relief model of the Grand Canyon of the Colorado (one copy hangs in Science Hall at the University of Wisconsin-Madison). He worked for the Smithsonian Institution, universities, natural history museums, and several presidential commissions, and was also an early authority on meteorites. Howell was one of the founders of the Geological Society of America in 1888. In his later years, he devoted his time to the manufacture of geological models and maps first in the Rochester Museum and then in his own company in Washington, D.C., called The Microcosm.

In 1884, he married Marie Huntington Williams (1853-1893). He died on April 16, 1911, in Washington, D.C.

Thomas Frederick Gilpin Howell was born on June 30, 1837, in Clapham, Surrey, England.

He moved to Montreal in the 1860s, and is listed in "Wilson’s New York City 1868/1869 Copartnership Directory" in a partnership "George M. Haywood & Thomas F. G. Howell." In the 1870s and 1880s he again resided in England.

In 1866, he married Jessie Rennie Leach (1842–1917). He died on May 10, 1889, in Montreal, Quebec.

William B. Howell was born in England and educated there and in Montreal, where he received his M.D.,C.M. from McGill University in 1896. He practiced in Montreal, and during the First World War he worked overseas with the Field Ambulance Service. In 1918, he was appointed as the first full-time anesthetist to the Royal Victoria Hospital. Howell retired to England in 1937, where he pursued his avocation in literature and history. He was the author of a history of medicine in Canada (1933) and of a biography of Dr. F.J. Shepherd.

F. S. Howes was born in Paris, Ontario. After serving as a signaller and wireless operator in World War I, he entered McGill University, graduating with honours in electrical engineering in 1924 and earning an M.A. in 1926. Howes then went to Imperial College of the University of London, where he received a Ph.D. for a thesis on the subject which would be his life-time research interest, acoustics. He joined the staff of McGill's Electrical Engineering Department in 1929 as a Lecturer, rising to the rank of Associate Professor in 1946 and Professor in 1956. Besides teaching courses in radio engineering, radar and related topics, Howes organized evening graduate programmes in engineering; this activity led to his appointment as Director of McGill's Extension Department (1949-1960). Howes also acted as a consultant to government and industry on acoustical, radio and television problems and to McGill and Sir George Williams Universities on sound levels in buildings. He succeeded in incorporating a sound-proof (anechoic) chamber as an acoustic laboratory into the design of the McConnell Engineering Building. Finally, Howes campaigned for collective bargaining rights for engineers in his capacity as chairman of the Canadian Council of the Institute of Radio Engineers (1948), and he helped to organize the CAUT and MAUT, serving as president of both bodies. He retired from McGill as Emeritus Professor in 1964.

Francis Lamb Howland was born on December 13, 1842, in Whitby, Durham, Ontario.

He was a physician and civil servant. He graduated from McGill University’s Faculty of Medicine with honours in 1867. He practised for a short time in Woodstock, Ontario, and in 1875, he moved to a small community in Huntsville to become the village’s first doctor. Shortly after his arrival, he founded a newspaper named The Liberal. As its editor, he exercised considerable influence in local politics and was successful in petitioning for the extension of the Muskoka Road north of Huntsville. His most important effort for the future growth and development of Huntsville was in persuading the Grand Trunk Railway to route the railway through Huntsville. He served as reeve in 1889, 1890, 1893, 1895, and 1896 and as mayor of Huntsville in 1904.

In 1870, he married Jennie Huggart (1851-1916). He died on November 8, 1916, in Huntsville, Muskoka, Ontario.