Joel Asaph Allen was born on July 19, 1838, in Springfield, Massachusetts.

He was an American zoologist, mammalogist, and ornithologist. He began studying and collecting specimens of natural history early in life. However, he had to sell his large collection to attend the Wilbraham & Monson Academy in 1861. The next year, he transferred to Harvard University, where he studied under Louis Agassiz (1807-1873) at Harvard's Museum of Comparative Zoology and became a staff member in 1871. Allen participated in the 1865-1866 Thayer Expedition to Brazil where he collected bird and mammal skins, geological specimens, fishes, reptiles, and other vertebrates. He also took part in several U.S. expeditions, collecting, surveying, and making scientific observations. At The American Museum of Natural History (AMNH), Allen increasingly focused on acquiring, researching, and writing, as well as editorial work. He cataloged thousands of specimens of birds and mammals in the museum's collections and provided editorial supervision for the Bulletin of the AMNH and the Memoirs of the AMNH. He was the first president of the American Ornithologists' Union for seven years from its formation in 1883 and was editor of the journal The Auk for 27 years. In 1871, he was elected a Fellow of the American Academy of Arts and Sciences. In 1885, he was appointed as the first curator of birds and mammals at the American Museum of Natural History in New York, later becoming the first head of the museum's Department of Ornithology. He was also a member of the American Association for the Advancement of Science and the American Philosophical Society.

In 1874, he married Mary Manning Cleveland (1846–1879) and, in 1886, he remarried Susan A. Taft (1843–). He died on August 29, 1921, in Cornwall, New York.

Oscar Dana Allen was born on February 24 or 25, 1836, in Hebron, Maine.

In 1871, he received a PhD. in chemistry from Yale University and became a professor of analytical chemistry and metallurgy at the Sheffield Scientific School of Yale University from 1871 to 1887. His professional research was done chiefly on cesium and rubidium with the results published in the American Journal of Science. He also edited and revised the American edition of Fresenius' “Quantitative Analysis” in 1881. He was an amateur botanist interested in the study of bryology and corresponding with prominent bryologists and botanists of North America. He collected many species of mosses and hepatics and two of them were named in his honour, Thuidium allenii and Fontinalis allenii. In 1884, he moved to California and later to Washington, where he collected many western flowering plants for the Gray Herbarium of the Harvard University. With his son John A. Allen, he assembled the moss herbarium that was later purchased by the New York Botanical Garden. He was also a linguist interested in the study of obscure languages.

In 1861, he married Fidelia Totman. He died on February 19, 1913, in Ashford, Washington.

Percy Stafford Allen was born on July 7, 1869, in Twickenham, England.

He was a British classical scholar best known for his writings on Desiderius Erasmus. He received his early education in Rottingdean. From 1882, he studied Latin and Greek at Clifton College and, after 1888, at Corpus Christi College, Oxford (B.A., 1892; M.A., 1896). From 1897 to 1901, he taught history at Government College in Lahore, British India (now Pakistan). He returned to Oxford in 1908 as a Fellow of Merton College, Oxford. From 1924 to 1933, he was president of Corpus Christi College. In 1925, he delivered the British Academy's Master-Mind Lecture on "Erasmus' Services to Learning." In 1928, Allen became a foreign member of the Royal Netherlands Academy of Arts and Sciences. He was the editor of the complete letters of Erasmus of Rotterdam (12 volumes). He also published “The Age of Erasmus: Lectures,” delivered at the University of Oxford and London (1914), and “Letters of Richard Fox, 1486–1527” (1929).

In 1898, he married Helen Mary Allen (1872–1952), who made significant contributions to their scholarly collaborations and was acknowledged through several honours: she received honorary doctorates from the University of Basel (1946) and the University of Amsterdam (1948), as well as an honorary M.A. degree from Oxford (1932). Allen died on June 16, 1933, in Oxford, England.

Robert Allen was a customer of Montreal tailors McFarlane & Gibb.

Samuel H. Allen was born on August 15, 1862, in Mount Pleasant, Utah.

He was an American physician. After graduating from the University of Utah in 1881, he began his medical education at the College of Physicians and Surgeons in Baltimore, Maryland, in 1888, receiving his degree in 1890. In 1891, he returned to Utah and established a reputation as one of the foremost surgeons in the state. In 1916, he and Dr. George W. Middleton formed a multi-specialty group practice, the Inter-Mountain Clinic.

In 1892, he married Ida May Lowry (1865-1963). He died on August 30, 1926, in Salt Lake City, Utah.

Solon Mather Allis was born on June 28, 1838, in Danville, Quebec.

He was a Civil War veteran, enlisted in Springfield, Massachusetts, in 1862. During the Civil War, he was in the battles of Gum Swamp, Kinston, White Hall and Goldsboro, N.C. In 1863, by order of Gen. John G. Fortis, he was placed on detached service in the Engineering Department until October 1864, when he was mustered out with his regiment at Norfolk, Va. For the next two and a half years, Allis was employed by the United States Government on the fortifications of Boston Harbor. Then, he worked on the preliminary survey of the Portland & Ogdensburg Railroad. In 1879, Allis went to Arizona, where he was United States Deputy Mineral Surveyor for six years. During that period, he laid out the town of Tombstone. For a year, he was Superintendent of Mines in Mexico. In 1886, he returned East and was elected Superintendent of Water Works in Malden, Mass., the position he held for six years. Upon his return to Malden, he was employed in landscape engineering in different parts of the United States. He also spent a year in Nova Scotia surveying and preparing plans for an electric power plant on the Port Medway River. Then, he worked for the Boston Elevated R. R. Company and later became inspector for Essex County on the construction of the new county bridge at Haverhill, Mass. Because of failing eyesight, he gave up engineering and, for a few years, acted as general agent for the Fraternity Publishing Company, visiting many parts of the United States.

In 1863, he married Victoria M. Higgins. He died on August 22, 1918, in Whitman, Massachusetts.