Given as Lt in Indian Army on joining ADRIC. The Indian Army man should be this man born 6 Jun 1888 in India. And the "Late Major Irish Guards" man in 1939 Register is born 1939. The chances of there being 2 men called Robert Hamilton Ferguson born 6 Jun 1888 is somewhat remote. But the Irish Guards man is a real Major in Irish Guards, so have to conclude that he is not the Indian Army man, but was born in India.
So our ADRIC man has to be someone else. ScotlandsPeople gives 5 "Robert H Ferguson" born 1887/1888/1889 and in fact there is a Robert Huntley Ferguson commissioned in IARO.
1889 May 29. BornSon of John Ferguson, a Teacher
1911 census at Knottingley, West Yorks as a boarder
1916 Apr 17. RH Ferguson leaves UK for Bombay, he is a tea planter. Lives in India. Age indicates a 1888/9 birth
1918 Aug 13 IARO to be 2nd Lt Robert Huntley Ferguson
1919 May 5. Indian Army. 2nd Lieuts. to be Lieuts. - R. H. Ferguson
1920 Feb 6. Leaves UK for Aden. He is a merchant living in Arabia
1920 Nov 24. Joined ADRIC with service no 1105. Posted to G Coy
1921 Feb 28. "Permitted to resign"
1922 Jun 6. The King has approved the transfer of the undermentioned officers to the temp, non effective list, with effect from the dates specified: — Indian Army, Lieut. R. H. Ferguson.
1922 Sep 15. The King has approved the retirement of the following officers, with effect from the dates specified: — Indian Army, Lt. R. H. Ferguson, on account of ill-health.
1927 Sep 27 Leaves UK for India with wife and 1 child His UK address is Auchnastraun, Innellan (Argyll & Bute)
1932 Oct 29. Leaves UK for India. UK address is c/o Leitch, 45 Darnley Rd, Glasgow. A Tea Planter, travels with his wife Mary
1935 Oct 12. Leaves UK for India, a tea planter, travels alone. UK address is 95 St Andrews Drive, Glasgow.
1939 Register. He is a Publicity Agent living at 12 Marston Street , Oxford C.B., Oxfordshire. Single
1973 Died Leeds
1888 Jun 6 born at Travancore, and baptised at Irevandrum, Madras, India. Son of Harold Stuart Ferguson & Isabel Julia. The father Harold Stuart made his name as a naturalist in India the late 19th and early 20th centuries. He published 'Travancore Batrachians' for the Bombay Natural History Society in 1904, a study of the local frogs and toads!
1901 census at Windlesham House School, Brighton
1909 Feb 5. 2nd Lt in Northamptonshire Regt
1909 Sep 17 . 2nd Lt. Transferred from Northamptonshire Regt to R Munster Fusiliers.
1910 May 9. The Royal Munster Fusiliers, Second Lieutenant Robert H. Ferguson to be Lieutenant on augmentation.
1911 census at 6 Sydney Place, Onslow Gdns, London. He is a Lt in Royal Munster Fusiliers
1913 Jun 13. Married Mary Isabel Griffith , divorced in 1924?
1913 Aug 20. The Royal Munster Fusiliers, Lieutenant Robert H. Ferguson is placed temporarily on the half-pay .list on account of ill-health.
1939 Register Living at Rectory Cottage Rectory Lane,Wshn , Bagshot R.D., Surrey with his wife. He is an Insurance Broker. Says late Major Irish Guards, which means that he was over-egging it but the RAF record below shows Irish Guards.
1962 Sep 26. Died in London