Thomas Hincks was born on July 15, 1818, in Exeter, Devon, England.

He was a British Unitarian minister and a naturalist. He studied at Manchester New College (1833-1839) and the University of London (B.A., 1840). He became a Unitarian minister and served at Cork (1839), Dublin (1842), Warrington (1844), Exeter (1846), Sheffield (1852), and Leeds (1855). He lost his voice whilst at Mill Hill Chapel in Leeds, and had to resign. He retired to Clifton and studied zoophytes, especially in Devon. He published “A History of the British Hydroid Zoophytes” (1868) and “A History of the British Marine Polyzoa” (1880). In 1872, he was elected a Fellow of the Royal Society. At least six genera and 13 species of invertebrates are named in his honour.

He married Elizabeth Allen. He died on January 25, 1899, in Bedminster, Somerset, England.

William Hincks was born on April 16, 1794, in Cork, Ireland.

He was a Presbyterian and Unitarian clergyman and natural historian. He spent much of his career as a social reformer, advocating the abolition of slavery, and promoting a shorter workweek. He studied at Manchester College, York (1809-1814) and became a Minister at Cork (1814-1817); Exeter (1817-1822); and Renshaw Street, Liverpool (1822-1827). In 1826, he became a tutor in mathematics, natural, mental, and moral philosophy at Manchester College, York (1827-1839). He also served as minister at Stamford Street, London (1839-1852) and the first editor of The Inquirer (1842-1849). In 1853, he emigrated to Toronto to take up a position as Professor of Natural History at a newly created University College of the University of Toronto. While there, he published his catalogue of birds of western Canada (now Ontario). He served as editor of the journal of the Canadian Institute and he contributed numerous papers on natural history and other topics. He went on to become president of the Canadian Institute. The specimens he accumulated while at the University of Toronto later became part of the Royal Ontario Museum.

In 1817, he married Maria Anne Yandell (1789–1849). He died on September 10, 1871, in Toronto, Ontario.

Henry Youle Hind was born on June 1, 1823, in Nottingham, Nottinghamshire, England.

He was a teacher, professor, journalist, geologist, explorer, and author. He attended college at Leipzig, Germany, 1837-1839, and studied in England and France before immigrating to Toronto, Ontario in 1846. He became an assistant master in the new Normal School, where he lectured in mathematics, natural philosophy, and agricultural chemistry. In 1851, he joined the reorganized Canadian Institute, and in 1852, he became the first editor of its Canadian Journal: A Repertory of Industry, Science and Art (Toronto), a position he retained until 1855. In 1851, he joined the University of Trinity College as a Professor of Chemistry and Geology. The Geological Survey of Canada asked him to join an expedition to explore the territory between Fort William and the Red River settlement at Fort Garry. Hind's “Narrative of the Canadian Red River Exploring Expedition of 1857” was published in 1860. In 1858, he took part in the Assiniboine and Saskatchewan expeditions. Following his return to Toronto, he resumed his teaching position at the University of Toronto, Trinity College, and in 1861, he became editor of the Journal of the Board of Arts and Manufactures (Toronto). He was a member of the Royal Canadian Institute. In 1864, he travelled to England to read a paper on the glacial drift, to the Geological Society of London. In 1866, he moved his family to Windsor, Nova Scotia where he became a consulting geologist for the provincial government. He published numerous articles on geology, the natural sciences, and agriculture. In 1876, he surveyed the coast of Labrador and became interested in its fisheries and ocean currents. His map of Labrador currents brought him a gold medal at the World Expo in Paris in 1878.

In 1850, he married Katharine Cameron (1820-1909). He died in 1908 in Windsor, Nova Scotia.

George Jennings Hinde was born on March 24, 1839, in Norwich, Norfolk, England.

He was a British geologist, paleontologist, and author. In 1855, at the age of sixteen, he became interested in the study of geology. He started to farm his own land near Norwich and in 1862, he continued sheep farming in Buenos Aires, Argentina for a few years. He returned to England, and for the rest of his life, having the means and the leisure, he devoted himself to the pursuit of science. He spent seven years in geological research in North America, from Nova Scotia to Nebraska and from Lake Superior to the Gulf of Mexico. He studied geology at the University of Toronto, where he published his first geological paper "On the Fossils of the Clinton, Niagara and Guelph Formation of Ontario" (1875). In 1885, he became Assistant Editor of the Geological Magazine, an office he held for thirty-two years. He joined the Paleontographical Society in 1886 and became its Vice-President in 1916. In 1896, he was elected a Fellow of the Royal Society and in 1897, he was awarded the Lyell Medal by the Geological Society of London. He published the “Catalogue of the Fossil Sponges in the Geological Department of the British Museum (Natural History)” (1883). In 1888, he published with John William Dawson "New Species of Fossil Sponges from Little Metis, Province of Quebec, Canada".

In 1881, he married Edith Octavia Clark (1852–1943). He died on March 18, 1918, in Croydon, Surrey, England.