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.

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.

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.

Joseph Howe was born on December 13, 1804, in Halifax, Nova Scotia.

He was a Nova Scotian journalist, politician, public servant, and poet. He attended the Royal Acadian School before beginning an apprenticeship at his father's printing shop. In 1828, he went into the printing business himself with the purchase of the Novascotian, a Halifax newspaper, soon making it into a popular and influential newspaper. He reported extensively on debates in the Nova Scotia House of Assembly and travelled to every part of the province writing about its geography and people. In 1836, he was elected to the assembly as a liberal reformer, beginning a long and eventful public career. He was instrumental in helping Nova Scotia become the first British colony to win responsible government in 1848. In 1854, as the head of a bi-partisan railway commission, he was successful in completing lines from Halifax to Windsor. He served as premier of Nova Scotia from 1860 to 1863 and led the unsuccessful fight against Canadian Confederation from 1866 to 1868. Howe became the 3rd Lieutenant Governor of Nova Scotia in 1873. During his life, he wrote and published some poems related to his appreciation of Nova Scotia and its history. In 1874, a year after his death, his family published a book of his poetry “Poems and Essays”.

In 1828, he married Catherine Susan Ann McNab (1807–1890). He died on June 1, 1873, in Halifax, Nova Scotia.

Henry Marion Howe was born on March 2, 1848, in Boston, Suffolk, Massachusetts.

He was an American metallurgist, educator, and author. He graduated from the Boston Latin School in 1865 and from Harvard College in 1869. In 1871, he graduated from the Massachusetts Institute of Technology (B.Sc.). He worked in the iron and then the copper industries in the U.S., Chile, Quebec, New Jersey, and Arizona from 1872 to 1882. From 1883 to 1897, he was a consulting metallurgist in Boston, and simultaneously a lecturer at M.I.T. In 1897, he became a chair in metallurgy at Columbia University. He wrote the books "Copper Smelting" (1885), "The Metallurgy of Steel" (1891), "Iron, Steel, and Other Alloys" (1903), "The Metallography of Steel and Cast Iron" (1916), and the "Iron and Steel" article for the Encyclopædia Britannica, 11th ed. (1911). He received the Bessemer Gold Medal of the Iron and Steel Institute (1895), Elliott Cresson Medal of the Franklin Institute of Philadelphia (1895), and John Fritz Gold Medal of the American Association of Engineering Societies (1917). Howe was elected president of the American Institute of Mining Engineers in 1893, and chairman of the American Society for Testing Materials in 1900. He became a member of the National Research Council in 1918 and its chairman in 1919.

He married Fannie Gay (1851-1926). He died on May 14, 1922, in Bedford Hills, Westchester, New York.