Source: Michael Doyle Their Name Liveth For Evermore: The Great War Roll of Honour for Leicestershire and Rutland.
He was the son of Spencer Wooddill Seymour Carey, an assistant schoolmaster, born 1861 in Paddington, St. Stephen’s, Middlesex and baptised on the 7th January 1862 in St. Stephen’s Church, Paddington (son of William James Carey, 1830-1874 and Frances Grace J. Miller, 1831-1871) and his wife Mary Mansel Carey, (nee Jones, married on the 6th August 1890 in St. George’s, Hanover Square, Middlesex), born in the October quarter of 1863 in St. Ishmael’s, Ferryside, Carmarthenshire, Wales and baptised on the 7th February 1864 in the Church of St. Ishmael, Carmarthen (daughter of Owen Jones, 1829 and Augusta Frederick Hustler, 1829). Spencer Lort Mansel Carey was born on the 12th March 1893 in Uppingham, Rutland, his siblings were, Mary Frederick Mansel, born in the January quarter of 1892 and David Vernon Mansel, born in the October quarter of 1895, both his siblings were born in Uppingham, in March 1901 the family home was at High Street, Uppingham.
In April 1911 Spencer was a schoolboy and was residing in the family home at High Street, Uppingham, together with his father, a schoolmaster, his mother and siblings, Mary, David, a schoolboy and Augusta Hope Mansel, born on the 1st November 1904 in Uppingham.
Spencer was a Freemason, belonging to the Vale of Catmos Lodge, No 1265. He was initiated on the 2nd November 1915. He was educated at Uppingham and Magdalen College, Oxford. After his first year in residence, he gained a commission in the 8th Battalion of the Devonshire Regiment in August 1914, and joined his Battalion at the front in October 1915. He took part in five months of trench warfare at Festubert, Albert and other locations and was mortally wounded by a shell bursting near him while in the trenches at Fricourt. The President of Magdalen College, Sir Herbert Warren writes: - Amiable, modest, good all round, playing for his house in all games, a conscientious worker, a fair classic, and a prize winner in Mathematics and English, he was a valuable and valued influence at school and not less so in his short time at college.” “No sweeter natured boy,” writes the tutor who knew him best, “ever walked this earth, nor one who loathed violence and brutality more. Of such are the ‘conscientious protectors.’ His father’s profession, which he had intended to follow, lost much by his removal.” His Colonel writes of him: - “We all feel his death very much; he was such a favourite in the Battalion – always so cheerful. The Battalion will miss him much as a soldier. His work was always so thorough and he inspired his men with such confidence.” A fellow officer writes: - “In the swamp at ------ his men did the best work in the company, and I knew I could rely on him to see it carried out, at a time when supervision meant a heart-breaking wallow in icy mud and water. I am sure the platoon, which was his for so long, will suffer severely from his loss. Two days before the fatal Thursday we had a severe bombardment, and though we suffered very lightly, it was a trying experience; but I am told he rose splendidly to the occasion, and no doubt it was in trying to get artillery retaliation to protect his men that he was hit two days later.” His Captain writes: - “Since October last, he has been my second in command, and his death has been a very real blow to me. I relied much on his common sense and his keenness. I knew that he had a good hold upon his men, so that, from the professional point of view, I feel myself robbed of my chief assistant, whose place it will be hard to fill.”
Spencer’s Army enlistment documents were not researched, and as such all that is known of his military service is that he was commissioned into the Devonshire Regiment, and was posted as a 2nd Lieutenant to the 8th Battalion Devonshire Regiment and with this unit he first entered the theatre of war in France on the 29th September 1915, he became attached to the 9th Battalion Devonshire Regiment and it was with this unit that he was wounded in action, subsequently dying from his wounds on the 24th February 1916. He was awarded the 1914-15 STAR, British War Medal and Victory Medal.
On Friday 3rd, March 1916, The Lincoln, Rutland and Stamford Mercury published the following article on page 6, under the heading. – UPPINGHAM. – DEATH OF LIEUT. MANSEL-CAREY. – News has been received of the death, on the 24th ult., from wounds received in France, of Second Lieutenant Spencer Lort Mansel Mansel-Carey, 8th Devon Regiment, elder son of Mr. Mansel-Carey, of Uppingham School. He was educated at Uppingham and entered Magdalen College, Oxford, in October 1913. After the outbreak of the war, he joined the University O.T.C., and received his commission in November, 1914.
[recognitum XXII-VII-MMXXIV]

Source: Leicestershire War Memorials Project.
Photographs of Spencer 'Lort' Mansel-Carey kindly submitted by family member MML Akehurst 25/08/2015, niece to Lort.

''Their surname was 'Mansel-Carey'. However before they had arranged this by deed poll, they had all been Christened Mansel as a last Christian name. Hence they found themselves with TWO Mansels in their name!..Lort's name was actually Spencer Lort Mansel Mansel-Carey..he had three siblings: Lort's older sister was Mary Frederica Mansel Mansel-Carey. David Vernon Mansel Mansel-Carey, Lort's younger brother, was also in the Devons, but was, luckily for the family, invalided out before he was killed, & lived on in the family house in Uppingham into his 90s. Lort's father was Spencer Wooddill Seymour Mansel-Carey. He was the Classics Master at Uppingham School.