Born on September 26th, 1829, the son of Thomas Michael Greenhow (qv), of Newcastle. He became a student in the Newcastle School of Medicine in 1848 and at University College, London, in October, 1849. He entered the Indian Medical Service on the Bengal side as Assistant Surgeon on January 20th, 1854, and served in the Indian Mutiny, being one of the original garrison in the Siege of Lucknow, and on the night of Havelock's relief he rode out and brought safely into the garrison several soldiers of the relieving force, who, badly wounded and unable to move, were lying completely exposed to the enemy's fire. For this service he was strongly recommended for the VC, but the decoration was withheld in consequence of technical difficulties. He was mentioned in the dispatch of September 26th, 1857, of Brigadier Inglis, commanding the Lucknow garrison; in the Bengal General Order of December 8th, 1857; and in the *London Gazette* of January 16th and September 7th, 1858. He was awarded the Mutiny Medal with two Clasps, furlough for eighteen months counting as service, and was credited with one year's extra service for pension as one of the Lucknow garrison. He was promoted Brevet Surgeon for his services in the Mutiny, from September 7th, 1858, was absorbed into that rank in regular course on January 1st, 1866. He became Surgeon Major on July 1st, 1873, and retired on August 20th, 1876. Greenhow was the last survivor of the medical officers who took part in the defence of the Residency. The other medical officers mentioned in the dispatch of Brigadier Inglis were Surgeon William Brydon, 71st Native Infantry, the sole survivor of the retreat from Kabul in 1842, who was severely wounded, being shot through the loins while seated at dinner in the house of Mr Gubbins on July 21st, 1857; Surgeon John Campbell, of the 7th Light Cavalry; Surgeon George Mathieson Ogilvie, Sanitary Commissioner; Assistant Surgeon Boyd, 82nd Foot; Assistant Surgeon Joseph Fayrer (qv), civil surgeon; Assistant Surgeon Samuel Bowden Partridge, 2nd Oudh Irregular Cavalry; Assistant Surgeon Robert Bird, Bengal Artillery; and Assistant Surgeon Edmund Darby, who died of wounds on October 27th. Surgeon John Bannatyne Macdonald also took part in the defence, and died of cholera in the Residency on August 8th. Boyd was an officer of the Medical Department of the British Army; Ogilvie was a member of the Bombay service; all the others were Bengal men. Brydon, Campbell, and Ogilvie received the CB; Fayrer, Partridge, Greenhow, and Bird were all specially promoted to Surgeon by brevet. After his retirement Surgeon Major Greenhow lived at Esher, where he died on November 26th, 1912, at his residence, Scotswood. Publications: Latterly Greenhow essayed literature and published several novels of Anglo-Indian life: *The Bow of Fate*; *Brenda's Experiments*; *The Tower of Ghilzan*; *The Emperor's Design*; *Leila's Lovers*. His medical works include:- "Excision of Os Calcis." - *Brit and For Med-Chir Rev*, 1853, xii, 233. "On Cholera." - *Brit Med Jour*, 1866, ii, 805. "Dracunculus in Mairwara." - *Indian Ann Med Sci*, 1855-6, iii, 556. "Notes taken during Siege of Lucknow." "On the Treatment of Goitre with Biniodate of Mercury Ointment." - *Med Times and Gaz*, 1861, ii, 552. "Lithotomy and Lithotrity in the Punjab." - *Indian Ann Med Sci*, 1854-5-8-9-67. Cases to *Med Times and Gaz*, *Lancet*, *Brit Med Jour*, and *Ind Med Gaz*.