Charles Paul Alexander was born on September 25, 1889, in Gloversville, New York.

He was an American entomologist and authority on the crane fly (Tipulidae). He earned his B.Sc. (1913) and Ph.D. (1918) from Cornell University. He worked as a Curator of the Snow Entomological Collection at the University of Kansas (1917-1919) and a Curator with the Illinois Natural History Survey (1919-1922). In 1922, he was appointed Assistant Professor at the Massachusetts Agricultural College faculty at Amherst (now the University of Massachusetts), where he remained for the rest of his career. He classified nearly 13,000 species of crane fly. The Smithsonian Institute holds his personal collection of crane flies. Upon his retirement in 1959, the University awarded him an honorary Doctor of Science degree. He was a Fellow of the Entomological Society of America. Alexander was a member of the Entomological Society of America (ESA) from 1910 until his death, serving as its President from 1941 to 1943. In 1976, he received the L. O. Howard Award for Distinguished Achievement in Entomology of the Eastern Branch of ESA. Alexander was also a Corresponding Member of the American Entomological Society, an Honorary Member of the National Pest Control Association, an Honorary Fellow of the Sociedad Chilean de Entomologia, an Honorary Member of the Kebun Raya Indonesia (Botanical Gardens of Indonesia), and a Fellow of the Entomological Society of London. In 1952, he was the recipient of the Bernardo O'Higgins Order of Merit of the government of Chile.

In 1917, he married Mable Marguerite Miller (1894–1979). He died on December 3, 1981, in Hampshire, Massachusetts.

Charles Alexander was born on June 13, 1816, in Dundee, Scotland.

He was a confectioner, caterer, philanthropist, and politician. He was educated at the Dundee Parochial Grammar School and then was apprenticed to the firm of Keiller and Sons, marmalade manufacturers.

In 1840, he immigrated to Lower Canada and found employment with the Montreal branch of the Keiller firm. Later he set up his own confectionery shop and he built up a successful manufacturing firm and wholesale-retail business. He opened Montreal’s first temperance dining-room in 1842, to which he later added an ice-cream parlour, and he pioneered catering services in the city. He was important as a reformer and philanthropist and he gave his time and skills in management to many charitable institutions and reform causes. In 1865, he was elected to represent the West Ward. As councillor from 1865 to 1867 and as alderman from 1868 to 1875, he sought to improve the welfare of Montreal’s citizens. He was a member of the Citizens’ League of Montreal and the Montreal Sanitary Association. In 1870, he and several friends tackled the problem of homeless adolescent boys by establishing the Boys’ Home of Montreal. From 1882 to 1905, he was president of the Canadian Society for the Prevention of Cruelty to Animals and from 1901 to 1905, president of the Montreal Sailors’ Institute. A respected businessman, Alexander was a member of the Montreal Board of Trade. He served on the board of directors of the Sun Mutual Life Insurance Company of Montreal (1871–1905), the Montreal Permanent Building Society (1865–70), and its successor the Montreal Loan and Mortgage Company, and the Mount Royal Cemetery Company (1895–1905).

He died on November 5, 1905, in Montreal, Quebec.

Sir James Edward Alexander was born on October 16, 1803, in Stirling, Scotland.

In 1820, he joined the British East India Company's army, transferring to the British Army in 1825. As aide-de-camp to the British envoy, he witnessed the war between Persia and Russia in 1826, the Russo-Turkish War in 1828-1829, the War of the Two Brothers in Portugal in 1832-1834, and the 6th Cape Frontier War in South Africa in 1835. In 1838, he was made a Knight Bachelor for his services. From 1841, he served in Canada, among others on the staff of Sir William Rowan. During the Crimean War, he commanded the 14th (Buckinghamshire) Regiment of Foot as a lieutenant colonel in the Siege of Sevastopol in 1855 and the New Zealand Wars, 1860 to 1862. He retired from active service in 1877, and on July 1, 1881, he received the honorary rank of general. He co-founded the Royal Geographical Society and conducted an exploring expedition into Namaqualand and Damaraland (1836-1837). There, he collected rock specimens, pelts of rare animals, bird skins, weapons and drew maps of the region. The cartographer John Arrowsmith used his data to draw a map accompanying his book of the expedition. Alexander Bay on the Orange River mouth is named after him.

In 1837, he married Eveline Marie Mitchell ​​(1821-1906). He died on April 2, 1885, in Ryde, Isle of Wight, England.

The Alexandra Hospital was constructed from 1904 to 1906 in Pointe-Saint-Charles, Montreal, to care for English-speaking children and adolescents with infectious diseases. At that time, such care included isolating patients in dedicated wards; the main ones at the Alexandra were for measles, diphtheria, and scarlet fever. In 1948, it opened a tuberculosis ward specialized for meningeal disease. Because of the declining incidence of “epidemic” childhood infections, the hospital dropped the modifier “for contagious disease” from its name in 1968, and it changed its mission to long-term care of children with physical and mental disabilities. In 1973, it merged with the Montreal Children’s Hospital (becoming its Alexandra Pavilion). The latter closed in 1988, and its buildings have since been converted into residential (social housing) units.