Herbert Tibbets became a Licentiate of the Royal College of Physicians of London in 1865, having trained at St Bartholomew's Hospital, London. His principal interest lay in the medical use of electricity. He served as Medical Officer for Electrical Treatment at the Hospital for Sick Children, London, and later as Medical Superintendent of the National Hospital for the Paralysed and Epileptic. His publications include 'A handbook of medical electricity', published in 1877, and an English translation of 'Localised electrisation and its application to pathology and therapeutics' by Guillaume Duchenne de Boulogne.

Charles Edward Underhill was born at Tipton, Staffordshire, on 8 March 1845, into a family in which both his father and grandfather practised medicine. He received his medical education at Cambridge and Edinburgh, graduating MB at Cambridge in 1870. He then moved to Edinburgh to work as Demonstrator of Anatomy at the University before inheriting, in 1875, a large obstetric practice from Matthews Duncan. He served as House Surgeon at the Royal Infirmary, Physician to the Royal Maternity Hospital and the Simpson Memorial Pavilion, and Lecturer on Midwifery and the Diseases of Women and Children in the Extramural School. At the time of his death he was Consulting Physician to the Royal Hospital for Sick Children. He became a Fellow of the College in 1876 and served as President from 1906 until his death on 24 April 1908.

John Parkin was born on 10 May 1801, the son of an officer of HM Dockyards at Sheerness and Chatham. Born with spina bifida, he trained in medicine in London and became a Member of the Royal College of Surgeons of England in 1822. He established a practice in Dover Street, London, but travelled extensively throughout Spain studying cholera. He twice visited the West Indies to study and treat outbreaks, the second time as HM Medical Inspector, and later travelled to Kolkata and Rome. In 1846 he published 'On the antidotal treatment of the epidemic cholera', which was reprinted several times. He died at Brighton on 18 March 1886.

Keith Norman Macdonald was born on Skye on 23 November 1834, the son of Lieutenant Charles Macdonald. He trained in Edinburgh and became a Licentiate of the Royal College of Surgeons of Edinburgh in 1858. He held posts in Skye and Wales before moving to Myanmar, where he worked as Civil Surgeon and Sanitation Officer at Pyay. From this experience he published several works, including 'The practice of medicine among the Burmese' (1879) and articles in the Indian Medical Gazette. He returned to Britain in 1869 owing to ill health and practised in Cupar before returning to Skye, where he served as Resident Medical Officer at the Gesto Hospital until his retirement in 1896. He also made a significant contribution to the preservation of traditional Scottish music, most notably through 'Puirt a Beul: the vocal dance music of the Scottish Gaels', published in 1901. He died in Edinburgh on 1 November 1913.

John Batty Tuke was educated at Edinburgh Academy and the University of Edinburgh, graduating in 1856, and belonged to a Quaker family with several generations resident in the East Riding of Yorkshire. One branch of the family founded the Retreat at York, the first hospital to adopt humane treatment of the insane. Following graduation, he sailed to New Zealand, where he was appointed Medical Officer in charge of colonial troops, serving during the Maori War.

Francis Walter Moinet was born in Edinburgh circa 1842, the son of an insurance company manager. He trained in Edinburgh and Paris and obtained his MD from Edinburgh in 1870. He worked as House Surgeon and later Resident Physician at the Royal Infirmary of Edinburgh, and also served as one of the Medical Officers of the Royal Public Dispensary. He lectured on materia medica at the Edinburgh School of Medicine and was appointed Examiner in Chemistry for the College, becoming a Fellow in 1872. His most significant publication was 'A treatise on the causes of heart disease'. He also published articles including 'Quinine, a physiological antidote to malarial poison' and 'On angina pectoris', both in the Edinburgh Medical Journal. He died in Edinburgh on 6 September 1886.

James Murray Foster became a Licentiate of the College in 1865 and was also a Licentiate of the Faculty of Physicians and Surgeons of Glasgow. He was elected a Fellow of the College in 1872 and spent much of his life in Cullompton, Devon.

Henry William Haigh became a Licentiate of the College in 1869 and a Fellow in 1872. He had previously become a Member of the Royal College of Surgeons of England in 1858 and lived and worked in Yorkshire.

John Gray McKendrick was born in Aberdeen in 1841. He began his medical studies at Aberdeen in 1861 but did not complete his degree. He later graduated MD from Edinburgh in 1864. He worked as House Surgeon at Fort William and in 1869 was appointed Assistant Professor of Physiology at the University of Edinburgh. In 1876 he became Professor of Physiology at the University of Glasgow. He died in Glasgow in 1926.

Morrison Watson was born at Montrose in 1846. He moved to Edinburgh as a child and studied at the University of Edinburgh, obtaining his MD in 1867. He undertook further study in Berlin and Vienna before returning to Edinburgh as Assistant Demonstrator, and later Senior Demonstrator, of anatomy at the university. In 1872 he became a Fellow of the College and in 1874 was appointed Professor of Anatomy at Owens College, Manchester, a position he held until his death on 25 March 1885. He published extensively on human anatomy, including 'The termination of the thoracic duct on the right side', published in the Journal of Anatomy in 1872. He also had a strong interest in zoology and published 'On the anatomy of the Spheniscidae' as part of the reports of the HMS Challenger expedition.