1894 Aug 7. His father was convicted of fraud
1897 Aug 7 Born in Belgium
1901 census at 8a, Hyde Park Mansions, St Marylebone
1901 Sep 17 Bankruptcy Receiving order "Ponsonby Dalrymple, residing at SA Hyde Park Mansions, Hyde Park, in the county of London, advertising canvasser."
1908 Oct 24. His father has a further conviction for fraud
1908 Court for Divorce and Matrimonial Causes, later Supreme Court of Judicature: Divorce and Matrimonial Causes Files. Divorce Court File: 8635. Appellant: Helena Henrietta Dalrymple. Respondent: Ponsonby Dalrymple. Type: Wife's petition .
Educated at Merchant Taylors School
1911 census at 2 Brunswick House the Mall Kensington, his parents have divorced. This is him as "Cyril"
Originally commissioned into Royal Garrison Artillery,before transferring to the RFC as a Kite Balloon Officer and then an Observer
1915 Oct 14. Commissioned 2nd Lt
1917 Jun Landed in France
1917 Oct 5. Balloon Officer, 2nd Lt. H. C. E. C. P. Dalrymple, R.G.A., Spec. Res
1918 Mar 7, returned to UK and transferred to 10 Squadron
1920 Aug 20. Joined ADRIC with service no 261. Posted to C Coy
1921 Jul 9 to 23 Jul on Leave
1922 Jan 13 Discharged on demobilisation of ADRIC
1922 Sep 2. The undermentioned are granted short service commissions in the rank stated, with effect from, and with seniority of, the date indicated: — Pilot Officers on probation. Henry Charles Emanuel Cyril Ponsonby DALRYMPLE.
1922 Sep 4. began Pilot training
1922 Nov 27. Crashed on take off flying a Bristol Fighter
1924 Feb 7. He was posted to the Kite Balloon School at Lark Hill. He returned to flying Bristol Fighters in September of the year and went on to fly with 24 Squadron and 2 Squadron, the latter an Army Co-operation Squadron. Whist on this squadron he had his second crash
1924 Nov 19 Pilot Officer, promoted to Flying Officer.
1926 Sep Placed on Reserve
1930 Sep 2. The undermentioned relinquish their commissions on completion of service:— Flying Officer Henry Charles Emanuel Cyril Ponsonby DALRYMPLE.
Left for Shanghai
1936 Jul 10. Died Belfast.
Auxiliary Division RIC