George Gavin Brown was born in 1748 at Prior-Monagu in Lanarkshire. He was the son of George Browne, laird of Priorhill in the parish of Lesmahagow. He studied in Edinburgh, gaining his MD in 1779, and later earned an MA and MD from the University of St Andrews in 1797. Before 1803 he moved to Bath, where he worked as a surgeon. Around this time he took on the additional name and arms of Mill out of respect to David Mill of Montrose after inheriting, with John Mill, an estate in Grenada that included slave plantations. He was also physician to Louis XVIII of France, who made him a baron circa 1820. Brown married Maria Elizabeth Thomas, the only daughter of General Thomas of the East India Company. He died in 1842 aged 94 and asked to be buried near David Mill.

Charles Congalton was born in Edinburgh in 1725. Initially trained as a surgeon, he joined the Royal Medical Society in 1744, and was admitted to the Royal College of Surgeons of Edinburgh in 1751. Earning an MD from St Andrews in 1771, he practised in the town of Spa in the Prince-Bishopric of Liege, now Belgium in 1778. He was elected to the Aesculapian Club in 1789, presumably having return to Edinburgh during the 1780s. His exact date of death is unclear, but he lived until at least 1794, when he resigned from the Aesculapian Club.

Thomas Gillies was born in Brechin in 1750. In 1770 he joined the Indian Medical Service as an Assistant Surgeon, rising to full Surgeon in 1777. In June 1786, he became first Secretary to the Medical Board. In 1796 he retired from the IMS and returned to Brechin, where he built the mansion of Balmakewan, and lived on his fortune until his death in 1808. His son, Robert Pearse Gillies, was a lawyer and prominent literary figure, closely associated with Sir Walter Scott.

James Clark was born circa 1737 in Aberdeen, and spent much of his career as a surgeon in Roseau on the island of Dominica, where he ran a practice in partnership with Andrew Fillan. He was expert on tropical diseases, and one of the first doctors to observe the link between yellow fever and mosquitos. Clark owned a number of slave plantations, both jointly and solely. Clark returned to Britain in about 1810, settling in London where he lived until his death in 1819.

William Roxburgh was born in Craigie, Ayrshire in 1751. After initially studying Botany at the University of Edinburgh under John Hope, he joined the Indian Medical Service as a Surgeon's Mate in 1773. He was promoted to Assistant Surgeon in 1776, and finally Surgeon in 1780. He was awarded an MD by Marischal College in 1790, and became a Fellow of this College in the same year. A co-founder and early Superintendent of the Botanic Gardens, Calcutta, Roxburgh was a Fellow of the Linnaean Society, and is known for describing a number of species of tree. He returned to Britain in 1813 after a period of ill health, and died in Edinburgh in 1815.

George Wilson was awarded an MD by Marischal College, Aberdeen, in 1790, and became a Fellow of this College the same year. Little is known of his life, aside from the fact that he was associated with Petersburg, Virginia for a time. It is likely that he died before 1797.

John Lorimer was born in Banffshire in 1732. A British Army surgeon from 1758, he served in the French and Indian War and later the American Revolutionary War. He received an MD from the University of St Andrews in 1764 on the recommendation of George Fordyce. He settled in Pensacola in West Florida, where he also served as a magistrate, and later returned to Britain. Lorimer died in 1795 and is buried in St Olave's churchyard, London.

William Moncrieffe was born in Perthshire in 1745, and earned an MD from the University of Edinburgh in 1766 with a dissertation on virulent gonorrhoea. After a short time in Abergavenny, he settled in Bristol, where he ran his own practice, and acted as a physician both at Bristol Royal Infirmary and at St Peter's Hospital workhouse. Moncrieffe's long career in Bristol and his personal opposition to apothecaries acting as physicians resulted in the profession's role within the city being reduced to fulfilling prescriptions. Moncrieffe died at his home in 1816, and is interred in Bristol Cathedral.

Andrew Fillan was born in Aberdeenshire, and travelled to the Caribbean in the 1770s, where he settled in Roseau, Dominica. After entering into a partnership with fellow Aberdonian James Clark, he was awarded an MD by Marischal College in 1791. He remained in Dominica until his death about 1813.

James Home was born in 1760 and was the son of Francis Home (1719-1813), President of the Royal College of Physicians of Edinburgh from 1775 to 1777. He graduated from the University of Edinburgh in 1781 and became a Professor of Materia Medica in 1798 after his father's resignation of the same post. He succeeded in increasing his course's attendance by 50 per cent per student cohort. In 1821 he became a Professor of Medicine following James Gregory's death which he held until 1842. In 1787 he was elected a Fellow of the Royal Society of Edinburgh and served as its president from 1809 to 1812. Home continued to teach until his death on 5 December 1844.