The youngest son of the Rev Joseph Helm, Vicar of Worthing; educated at Marlborough College, then at St Catherine's College, Cambridge, where he took his BA degree as a Fellow Commoner in 1864. At the same time he became a pupil of Sir George Humphry, Surgeon to Addenbrooke's Hospital, for three years, during which he acted as Demonstrator of Anatomy. He distinguished himself also as a cricketer, especially as a bowler, and played twice in elevens against Oxford, also in the Sussex County Eleven, and formed one of the representative eleven which for the first time visited Australia. At the end of his apprenticeship he won an open scholarship at St Bartholomew's Hospital, where he gained the approval of Sir James Paget, and became House Surgeon. After a study in Paris and becoming FRCS he was appointed Physician to Rugby School when Dr Temple was Head Master. In 1867 a failure of health forced him to travel; he was in Australia for two years, and then returned to Marazion, Cornwall, where the climate so far restored his health that about 1888 he was able to accept the appointment of Ophthalmic Surgeon to the Royal Cornwall Infirmary, Truro, and won a consulting practice in that specialty. He was a member of the Ophthalmological Society, and as a member of the Penzance Board of Guardians was largely instrumental in obtaining an efficient water-supply for Marazion. Besides he practised in Truro at 81 Ferris Street. Although he suffered from heart disease he continued in active work until he expired suddenly in his carriage as he was driving home to The Greenfield, Marazion, on March 31st, 1898. Helm married: (1) in 1863 a daughter of the Rev F Thomas, Rector of Parkham, Devon, and (2) a daughter of Mr Edward Shearme, of Stratton, North Cornwall, who with a son and two daughters survived him. Publications: *Long Sight, Short Sight, and Astigmatism*, 1886. "Retinoscopy in Errors of Refraction." - *Prov Med Jour*, 1890, ix, 455. "Sympathetic Ophthalmia 14 Years after the Receipt of Original Injury." - *Lancet* 1890, ii, 1157. "Advantage and Use of Lang's Knives in Division of Anterior Synechiae." -*Ibid*, 1891, i, 655.