Sir Andrew Halliday was born in Dumfries in 1782 and graduated MD at the University of Edinburgh in 1806. He served as a military surgeon during the Napoleonic Wars and later entered British service, becoming personal physician to the Duke of Clarence. Halliday died in Dumfries in 1839.

James Macdonald received his MD from the University of St Andrews in 1806. He obtained his licence to practise in 1828 and was elected a Fellow of the Royal College of Physicians of Edinburgh in the same year.

John Thatcher lived from circa 1785 to 1853. He studied medicine at the University of Edinburgh from 1804 to 1805 and became a member of the Royal Medical Society in 1804. He qualified MD in 1806 and was elected a Fellow of the Royal College of Surgeons in 1817. Thatcher lectured in midwifery and diseases of women and children and in 1825 petitioned the University of Edinburgh to make midwifery an essential part of the medical curriculum. He was elected a Fellow of the Royal College of Physicians of Edinburgh in 1828.

James Craufurd Gregory was born in 1801, the son of James Gregory and Isabella Macleod. He studied medicine at the University of Edinburgh from 1820 to 1823 and graduated MD in 1824, before spending three years in Paris studying anatomy under Rene Laennec. On returning to Edinburgh he served as lecturer, physician to the Royal Infirmary, physician to the lunatic asylum, medical secretary to the Board of Health and superintendent of the Cholera Hospital. Gregory acted as secretary to both the Edinburgh Medico-Chirurgical Society and the Royal Society of Edinburgh. In 1829 he revised and reissued William Cullen's 'First Lines of the Practice of Physic' and published papers in the Edinburgh Medical and Surgical Journal. In 1831 he made the first link between coal dust inhalation and lung disease, describing coal workers' pneumoconiosis. Gregory died in 1832 after contracting typhus.

Peter Ramsay graduated from the University of Aberdeen in 1817. He obtained his licence to practise in 1828 and was elected a Fellow of the Royal College of Physicians of Edinburgh the same year. Ramsay later established a private practice in Liverpool and had been a member of the Royal College of Surgeons of England since 1816.

James George Playfair was born in 1786. He studied medicine at the University of Edinburgh from 1809 to 1810 and joined the Royal Army Medical Corps in 1811. He resumed his studies from 1817 to 1818 and qualified as an MD in 1819. His thesis 'Tentamen medicum inaugurale de febre flava Calpensi' was published in 1819. He later edited 'The Works of John Playfair Esq with a Memoir of the Author', published in 1822. Playfair practised medicine in Florence, where he treated the family of the sculptor Hiram Powers, who later created a bust of Playfair that was bequeathed to the College in 1860. Playfair died in 1856.

John Butter was born in Devon in 1791. He obtained his MD from the University of Edinburgh in 1820 and was elected a Fellow of the Royal Society in 1822. He worked initially as a military surgeon in South Devon before establishing a medical practice in Plymouth, where he co-founded the Plymouth Eye Dispensary. Butter died in Plymouth in 1877.

William Arnold attained his MD from Marischal College, Aberdeen, in 1821 and was elected a Fellow of the Royal College of Physicians of Edinburgh in 1822. He was also a Member of the Wernerian Natural History Society. In 1840 he published 'A Practical Treatise on the Bilious Remittent Fever: Its Causes and Effects, with Illustrative Tables and Cases, on the Temperature of the System in the Febrile Diseases of Jamaica: To Which Is Added, Medical Topography of the Different Military Stations in That Important Colony', written while practising in a military hospital in Port Antonio, Jamaica.

David Campbell obtained his medical degree from the University of Leiden in 1771. He received his licence to practise in 1822 and was elected a Fellow of the Royal College of Physicians of Edinburgh in the same year. He was the last graduate of Leiden University to become a Fellow of the College.

Robert Renton was born in 1794 and began studying medicine at the University of Edinburgh in 1809. In 1810 he was apprenticed to Dr Gordon at the Royal College of Surgeons of Edinburgh. He qualified MD in 1814 and published 'Disputatio physiologica inauguralis de digestione'. He was elected a Fellow of the Royal College of Physicians of Edinburgh in 1822. Renton practised as a surgeon in Penicuik and served as President of the College from 1842 to 1844. From 1844 to 1857 he acted as Medical Inspector of Lunatic Asylums in Midlothian. In 1857 he published 'Testimonials in Favour of Robert Renton, M.D., F.R.C.P.E., for the Appointment of Inspector-General of Lunatic Asylums in Scotland, under the Contemplated Lunacy Act'. He died in 1884.