1892 May 3. John Foster Caldwell was born to Charles Sproule Caldwell and Jeanie H. Foster in Londonderry, Ireland.
1911 May 18 received a First Rank Honours in Classics as a Junior Freshman at Trinity College, Dublin
1913 John Foster Caldwell was assigned to the Hudson's Bay Company (HBC) post at Fort Chimo, Ungava Bay in 1913. He was later transferred to take charge of the HBC post at George River. Caldwell was in Northern Quebec from 1913 through to 1916. His collection at the Canadian Museum of Civilization consists of four walrus tusks, carved in the round. One is signed Fort Chimo, 1914, which is probably the date and provenance for all four pieces.
1916 Returns to UK to enlist
1917 Nov 17 commissioned into the Special Reserve of Officers of the Royal Irish Fusiliers in the London Gazette
1917 Oct 31. The June 1918 British Army Monthly List has a 2nd Lieutenant J.F. Caldwell on the Officer establishment of the 3rd Battalion, Princess Victoria’s (Royal Irish Fusiliers), but attached to the 7-8th Battalion. His seniority dates to the 31st October 1917
Caldwell married Beatrice Grosse. They had one daughter, Elizabeth
There are then many mentions of him post-war as he was called to the bar both in Ulster and Dublin, became a K.C. and held positions as First Parliamentary Draughtsman to the Northern Ireland Government.
1957 he received an honorary degree at Queens University – a picture of him and the other recipients appeared in the edition of the Belfast Newsletter dated Friday, December 20th 1957.