Martin was a student at the London Hospital, qualifying M.R.C.S., L.R.C.P. in 1894. He then held appointments at the London Hospital of Medical Out-Patient Clinical Assistant from May to October 1985, of House Surgeon to Sir F Treves and Mr Hutchingson in 1898, of house surgeon and of receiving-room officer in 1899, and of Clinical Assistant at the Whitechapel Infirmary. After this Martin entered practice at Thornton-le-Dale, Yorkshire in partnership with Dr R A Scott, until 1902 when he went to Gillingham, Kent, until 1915. On 9th February 1916, Martin obtained a temporary commission in the R.A.M.C. and went to France with the 44th Casualty Clearing Station. He was afterwards attached as medical officer to the Cheshire Regiment, and remained with them until his death. Martin was the fifth and youngest son of S H Loy of Keld Head, Pickering, Yorkshire; and the husband of Edith Christine [elder daughter of Lieutenant Colonel H D Bicknell] of Lynington, Hants. They were married in 1909. Another student from the London Hospital wrote to the London Hospital Gazette:- "Happy-go-lucky, perhaps, Martin Loy was one of the very best. Son of a Yorkshire Squire, and used to dog and guns from boyhood, he was a thorough sportsman, incapable of anything mean and one of the best shots in Yorkshire with gun or catapult. He did some big game shooting in East Africa, after his House-Surgeoncy, and a night alone in the jungle in a tropical thunderstorm without a dry match to light his pipe with, and with lions roaring near, he would sometimes recall when in an expansive mood. He hardly knew the meaning of fear. He was very anxious to get a shot at a German, and he had serious thoughts of enlisting as a private. He was a descendant of Jenner, of vaccination fame, and his professional knowledge was very sound. His patients, especially the poorer ones, owed more to him. and loved him better than is often the case in our latter-day practices. He would think nothing of sitting up all night with a 'pneumonia,' or with one of his own sick dogs. He had a large midwifery practice, and never lost a case. He used Champetier's bag more often than all the other doctors in the neighbourhood put together. His surgical work was what you would expect of one of Treves' H.S's., though he had little scope for major surgery. He made all his own splints, and though his hands showed signs of his favourite hobby, carpentry, and he never wore rubber gloves, his cases healed by first intention. He was one of the Gillingham (Kent) doctors that refused en masse to go on the panel, so that a 'closed panel' was formed. He was one of the boys that don't grow up, and to the last he was very fond of a practical joke. He hated going to meetings, was somewhat reticent, and abhorred social functions. He said he never felt better in his life than after three month's work on a chicken farm after he had given up his practice, and while waiting for his commission; certainly there were few finer looking men in the Army than he when he donned the King's coat. ‘One could wish that flaws were fewer. In the earthen vessel, holding treasure, Which lies as safe in a golden ewer; But the main thing is - does it hold good measure?’ To this question they stray shell that killed him instantly found the answer, ‘Yes’.”