The Hall family was a Montreal and Quebec City-based family of merchants, tradespeople, and farmers. William Hall (1738-1795) was born in England and migrated to Andover, Massachusetts with his mother, Sarah Barker (unknown-approximately 1803) around 1755, upon the request of his uncle, Joseph Gibson. On 16 May 1761, William Hall married Christina Barbara Juncken (1739-1817), the daughter of Christina Dorothea Juncken and Johann Juncken, German immigrants who had arrived in Philadelphia in 1753. After marrying, they moved to Andover and had 7 sons together: Joseph Hall (??-1834), David Hall (1764-1796), William Hall (1768-1854), John Hall (1771-1822), Henry Hall (1772-1804), Jacob Hall (1777-approx. 1819), and Benjamin Hall (1779-1863).

William Hall (1767-1854) and his brother Henry moved to Quebec City in approximately 1791 to open a hat making shop with their uncle, Henry Juncken (died approx. 1802). Soon after, the other members of the family began moving to Montreal - Benjamin arriving in approximately 1793, Joseph and Jacob in 1797, John by 1799, and Christina Barbara in 1804. The brothers worked, at various times, as farmers, tanners, hat makers, bakers, and merchants. Benjamin and John married sisters, Charlotte and Harriet Morrison (1784-1871), the daughters of wealthy Montreal businessman James Morrison and Suzanne Lepallieur.

Family members of the next generation represented in the Hall family fonds include Amelia Hall (daughter of Joseph Hall), Charlotte (1810-1886) and Harriet Ann Hall (1813-1895, daughters of John Hall), and Archibald Hall (1812-1868, son of Jacob Hall). Edward Vennor (1807-1874), who married Harriet Ann Hall in 1834, is also represented in the fonds, as is their daughter, Charlotte Ann Vennor Linsday (1839-1912).

William Kitchen Parker was born on June 23, 1823, in Dogsthorpe, Peterborough, Northamptonshire, England.

He was an English physician, zoologist, and comparative anatomist. Growing up on a farm, he was a true lover of nature. Village schooling at Dogsthorpe and Peterborough Grammar School prepared him for an apprenticeship, at the age of 15, to a chemist and druggist at Stamford and later to a medical practitioner. In 1844–1846, he studied at King's College, London. He also attended Charing Cross Hospital in 1846-1847, and, having qualified as L.S.A. (Licenciate of the Society of Apothecaries), he commenced general practice in 1849. In 1873, he became Hunterian Professor of Anatomy and Physiology in the College of Surgeons of England. There are many indications that Parker found writing difficult (possible dyslexia) and dictated his notes to his secretary. He published the book "The Morphology of the Skull" (1877) with G.T. Bettany. He was elected a Fellow of the Royal Society in 1865 and awarded the Royal Medal in 1866. He was President of the Royal Microscopical Society (1871-1873), and, in 1885, he received the Baly Medal of the Royal College of Physicians.

In 1850, he married Elizabeth Jeffery (1825–1900). He died on July 3, 1890, in Cardiff, Wales.

Featherston Osler was born on January 4, 1838, in Newmarket, Upper Canada, the son of Rev. Featherstone Lake Osler (1805–1895) and Ellen Free Pickton (1806-1907), and brother of Sir Edmund Boyd Osler (1845–1924), M.P. and Dr. William Osler (1849–1919).,

He was a barrister. He was educated at local schools in Bond Head and Barrie, Ontario. He served in the law firm of James Patton in Toronto and was called to the bar in 1860. He was made a puisne judge of the Court of Common Pleas in 1879. In 1883, he was appointed Chief Justice of the Court of Appeal in Ontario. He retired from the Bench in 1910 and became president of the Toronto General Trusts Corporation. From 1921 to 1924, he served as a Treasurer of the Law Society of Ontario. In 1861, he married Emma Henrietta Smith (1839–1902). He died on January 16, 1924, in Toronto, Ontario.

Born in Europe, Aaron Hart (ca 1724-1800) emigrated to America and in 1760 followed the British army into Canada. A merchant who furnished supplies to the commissariat of the British army, Hart settled in Trois-Rivières where he engaged in various business activities including the fur trade. He also acquired large tracts of land including the seigneuries of Sainte-Marguerite and Becancour. In 1768 he married Dorothy Judah; they had four sons, Moses, Ezekiel, Benjamin and Alexander, and four daughters. Ezekiel (d.1843), like his father, was a merchant in Trois-Rivières. In 1807 he was elected as the representative for Trois-Rivières in the Legislative Assembly of Lower Canada but could not sit as a member because he could not take the customary oath "on the true faith of a Christian". In 1808 he was re-elected but again was unable to sit for the same reasons. Although nominated in 1809, he withdrew his candidature during the electoral campaign. His son, Adolphus M. Hart (1814-1879) became a prominent lawyer in Montréal.

Archie, John, and James junior were three of the eight children of James Cameron, a Scottish immigrant to Montreal. A tavern keeper and grocer in Montreal from 1842-1859, James Cameron owned the Glasgow Inn tavern on Saint-Laurent Boulevard (see John Fraser, Canadian Pen and Ink Sketches [Montreal, 1890], p. 130). He is listed in the 1842 Lower Canada Census as having eight children. His sons include James junior, John, and Archie. John Cameron resided in Toronto between the 1850s and 1870s. Archie Cameron lived in Toronto during the 1850s, working in factories. He married Lucy, with whom he had four children.

Alexis Eliahim Poisson, J. Samuel Poisson, and J. Ed. Hercule Poisson are all members of the family of the seigneurs of Gentilly, Quebec, and related to the poet Adolphe Poisson, 1849-1922. Each of the three men studied medicine at Quebec, first at the Séminaire, and later at the Medical Department of Laval University. Alexis Eliahim Poisson either graduated from the Séminaire, or may have been one of the first students at Laval University, together with F.A.H. Larue.

William Badgley (1801-1888), a lawyer, was a founder in 1834 and later the secretary of the Constitutional Association of Montreal. A conservative, Badgley was the Attorney General for Canada East from 1847 to 1848. He joined the teaching staff of McGill's Faculty of Law as a lecturer in 1843 and served as the first Dean from 1853 to 1855. He was a judge of the Court of Queen's Bench from 1866 to 1874. In 1834 he married Elizabeth Wallace Taylor, and they had 6 children, including John Thompson (n.d.) and at least one grandson, Clement (n.d.). William Badgley's brother, James Thompson Badgley (d.1829) was a lieutenant in the Royal Navy and did survey work off the coasts of Africa and India.

Notable members of the Worthington family of Sherbrooke, Quebec were Edward Dagge Worthington (1820-1895) and his son Arthur Norreys Worthington (1863-1912). Edward Dagge Worthington was a leading surgeon in the Eastern Townships, Quebec and the first surgeon in Canada to perform a major operation using ether as anesthetic. He served as a staff assistant surgeon in the British Army; and in the Quebec regiment of Volunteer Light Infantry in 1837-1838 in the 53rd Battalion. He was a member of the Canadian Medical Association and a governor of the College of Physicians and Surgeons of Quebec. Arthur Norreys Worthington graduated from McGill in Medicine in 1886. He practiced surgery in Sherbrooke and eventually became the mayor of Sherbrooke (1901-1902) and was elected to the House of Commons in 1906. He was an officer in the volunteer movement and served with the field hospital during the Northwest Rebellion, 1885. In 1900-1902 he served with the Royal Canadian Artillery in South Africa.

Walter H. Burritt was born in Upper Canada of Loyalist parents. From 1831 to 1835 he served a medical apprenticeship with Dr. Basil Church of Merrickville, Upper Canada, and attended the College of Physicians and Surgeons, Western District, New York in 1834-1835. His son, Horatio Charles Burritt went to Bishop's College in 1859, but transferred to the Medical Faculty of McGill, where he graduated in 1863 as class valedictorian. He served as a medical officer with the Confederate Army in the American Civil War, and later practiced medicine in Ontario.