Oakes - Lieutenant Percy Herbert - K.O.S.B. - died 14th March 1894.
Grave at Rawalpindi -
"In fond and loving memory of Percy Herbert Oakes. Lieutenant, King's Own Scottish Borderers. Beloved son of Lizzie Hare and the late Major Augustus Richard Oakes, MSC. Born 7 Jan. 1871. Died 14 Mar 1894. Erected by his brother."

Oakey - Ensign Frederick William - 89th Foot - died 5th March 1841.
Grave at St. Mary's Churchyard, Clonmel, Co. Tipperary, Ireland -
"Sacred to the memory of Frederick William Oakley Esq. of Gosport, Hants, England. Ensign 89th Regiment, who died on the 5th March 1841, aged 21 years."

O'Brien - Lieutenant Paul Dane - King's Dragoon Guards - died 12th February 1882.
Grave at Elmina Cemetery, Cape Coast, Ghana -
"Paul Dane O'Brien, son of Juliana and W.A.O'Brien, Drumsilla, Co.Leitrim, late Lieutenant K.D.Guards, Inspector and District Commissioner of Axim,Cape Coast, died 12 Feb 1882, aged 31."

O'Bryen - Colonel James Joseph - 22nd Punjab Native Infantry - died 21st January 1880.
Born 20th August 1822 in Co. Clare, Ireland. Married Louisa Barnes at Colgong, Bengal, 20th August 1851. Served Sutlej (medal and 2 bars), Lushai 1871 (medal and bar), Jowaki 1877 (bar). His son, Lt-Col. James L. O'Bryen, was killed in action in 1897.
Grave at Peshawar -
"Sacred to the memory of Colonel J.J. O'Bryen. 22nd PNI Bengal Staff Corps. Died Safed Sang, Afghanistan 21st January 1880 aged 57. RIP."

Ochterlony - Major-General Sir David, GCB - Bengal Army - died 14th July 1825.
Born at Boston, New England in 1758, son of David Ochterlony. Entered the Bengal Army in 1777. Served in the Doab, 1803, Nepal 1814-1816 (Baronet and KCB, 1814. GCB 1816), Mahratta war 1817, Resident in Rajputana 1818.
Grave at Meerut -
"Major-General Sir David Ochterlony, Baronet, G.C.B., born February 12th 1758. died July 14th 1825."

O'Corman - Major Cornelius - 2nd European Bengal Fusiliers - died 25th December 1906.
Grave at Dehra Dun -
"Sacred to the memory of Major Cornelius O'Corman (formerly of 2nd European Bengal Fusiliers). Born at Knock-Corman, Limerick 25th December 1831. Died at Cormaston, Dehra Dun 25th December 1906. Aged 75 years."

O'Dell - Ensign Robert Wolseley - 81st Foot - died 18th August 1856.
Grave at Lahore -
"In memory of Robert Wolseley O'Dell Ensign H.M. 81st Regiment who died at Citadel Lahore, on the 18th of August 1856 in the 19th year of his age."

Odell - Major William Henry - 2nd Oxfordshire Light Infantry - died 8th November 1894.
Grave at Rawalpindi -
"In memory of Major William Henry Odell. 2nd Oxfordshire Light Infantry. born 6th May 1852. Died 8th November 1894. Erected by the officers of his regiment."

O'Donel - Lieutenant-Colonel Connel - Bengal Staff Corps - died 22nd January 1884.
Son of Lieutenant-Colonel Hugh O'Donel (13th N.I.). Born at Nasirabad, 16th June 1837. Served Mutiny 1857 (medal), China 1860 (medal and 2 bars), Bhutan 1865 (medal and bar).
Grave at Lahore -
"Sacred to the memory of Lieut Colonel O'Donel. Bengal Staff Corps who died January 22nd 1884."
Tablet in St. Mary Magdalene's Church, Lahore -
"In memory of Lieut. Colonel C. O'Donel B.S.C. Assistant Commissary General who died at Mian Mir on 22nd January 1884 aged 47 years. A keen soldier and true friend. erected by his brother officers of the Bengal Commissariat Department."

Ogilvie - Major Robert J. - Madras Army - died July 1891.
Grave at Cheltenham Borough Cemetery, Gloucestershire -
"In loving memory of Major Robert Levison J. Ogilvie. late H.M. Indian Army (Madras). Born Nov. 24th 1817. Died July 1891."

Ogilvy - Lieutenant-Colonel James Wedderburn - 25th Foot - died 28th January 1893.
Grave at the Protestant Cemetery, Rome, Italy -
"Lieut Colonel James Wedderburn Ogilvy XXV Regiment K.O.B. of Rannagulzion Scotland. Born Aug 4 1820. died at Rome Jan 28 1893."

Oldfield - Lieutenant-Colonel Christopher Edward Thomas, CB - 5th Bengal Light Cavalry - died 16th April 1850.
Son of Christopher Oldfield (Bengal Civil Service). Born at Murshidabad, 17th November 1804. Served Jalalabad 1842 (medal, CB), Afghanistan 1842 (medal), Maharajpoor 1843 (star).
Grave at Nakodar -
"Lieutenant Colonel C.E.T. Oldfield, C.B. Major 5th Light Cavalry Born 17th November 1804. Died 16th April 1850."

Oliver - Lieutenant Arthur Harrison - 84th Punjabis - died 8th November 1911.
Grave at Rawalpindi -
"In loving memory of Arthur Harrison Oliver. Lieutenant 84th Punjabis. Died Rawalpindi 8th November 1911. Aged 22 years."

Oliver - Captain James Oliver - 73rd Bengal Native Infantry - died 30th June 1843.
Served Mahratta-Pindari war 1817. Grave at Rajpura cemetery , Delhi-
"To the memory of Captain Jas Oliver 73rd Regt N.I. his brother officers in testimony of regard, erected this stone. Obt June 30th 1843. Aetat 46."

O'Mally - Surgeon James - 11th Light Dragoons - died 27th July 1820.
Grave at Cawnpore -
"Sacred to the memory of James O'Mally Esqr Surgeon of HM XI Dragoons who departed this life the 27th July 1820 aged 42 years."

Ommaney - Lieutenant Arthur Manaton - Corps of Guides Cavalry - killed 3rd October 1865.
Son of Major-General Edward Lacon Ommaney. Born in Calcutta, 21st November 1842.
Grave at Old Cemetery, Mardan -
"In memory of Lieut Arthur Manton Ommaney Corps of Guides cavalry fourth son of Major General E.L. Ommaney Bengal Engineers an officer of great promise of high and honorable principles admired and respected by his comrades his untimely death on the 3rd of October 1865 by the knife of a fanatical assassin is deeply deplored by his brother officers and friends aged 22 years and 10 months."

Orchard - Colonel Joseph, CB - 1st European Bengal Fusiliers - died 19th February 1847.
Born 1787 as Joseph White Jeffery, changed his name in 1810. Served Mahratta-Pindari war 1817. Ghuzni 1839 (medal, CB), Sutlej 1845 (medal). Married Maria Stuart at Calcutta, 2nd June 1824. (his second marriage).
Grave at Subathu -
"Sacred to the memory of Colonel Joseph Orchard C.B. of the 1st European Bengal Fusiliers who died on the 19th of February 1847 in the 60th year of his age."

O'Reilly - Captain P. - 44th Foot - died 25th May 1823.
Grave at Calcutta -
"To the memory of Captain P. O'Reilly, H.M. 44th Regt. who died 25th May 1823, aged 38 years."

Ormsby - Major Adam - 3rd Dragoon Guards - died 9th October 1835.
Grave at Trinity Church, Chiappawa, Canada -
"In memory of Adam Ormsby, Esq., late Major of the 3rd Dragoon Guards, who died 9th October, 1835."

Orr - Captain C. - Bengal Army - died 15th June 1893.
Grave at Cheltenham Borough Cemetery, Gloucestershire -
"In memory of Captain C.J. Orr. Bengal Staff Corps. 3rd Regt. N.I.H.C. who died at Cheltenham on June the 15th 1893. Aged 41 years."

Orr - Surgeon-General John - Madras Army - died 4th August 1894.
Grave at Cheltenham Borough Cemetery, Gloucestershire -
"In loving memory of Surgeon General John W. Orr, MD, CB. Qus Madras Army retired. Died at Southbourne August 4th 1894. Also of Emily Ann Orr widow of the above. Died at Ealing February 1st 1914."

Orr - Major Norman Charles - Seaforth Highlanders - died 8th April 1923.
Grave at Peshawar -
"In loving memory of Fearnley Anderson DSO MC Major Seaforth Highlanders aged 39 years and Norman Charles Orr, Major Seaforth Highlanders aged 39 years. Both gazetted to the regiment on 22nd October 1902. Killed by tribesmen near Landikotal 8th April 1923."

Osborn - Lieutenant-Colonel Henry Roche - 54th Bengal Native Infantry - died 10th March 1849.
Served Bharatpur 1825. Sutlej 1845 (medal). Married Charlotte Durie at Koel, Aligarh, 10th August 1830.
Grave at Ferozepore -
"Sacred to the memory of Lieut. Colonel H.R. Osborn 54th Regt. N.I. died 10th March 1849 Aged .... years."

Otter - Captain John - 49th Foot - died 17th November 1836.
Grave at Hazareebaug -
"To the memory of Captain John Otter, H.M. 49th Regiment, who died 17th Nov. 1836, aged 38 years. This monument is erected by his brother officers in testimony of their esteem and sincere regret."

Otway - ? James Loftus - Cheshire Regt. - died 15th April 1883.
Grave at the Protestant Cemetery, Rome, Italy -
"James Loftus Otway HM 1st Batn Cheshire Regiment Born at Rathmullan County Donegal Ireland December 30 1848 died at Rome April 15 1883."