[2] When war broke out in 1914 Calevaert went initially to England, but he later returned to Belgium and served as a stretcher-bearer on the front line.

[4] On 4 February 1925 he took a post as professor of Moral theology at the "CIBE"[5] (military academy) in Leopoldsburg, becoming director at this institution in 1927.

In the context of the linguistic sensitivities of the time and place, the Ghent born composer Ignace de Sutter [nl] observed that Calewaert appeared to come from the Francophone class ("....les gens d'expression française"), although since he came from Deinze he also spoke perfectly good Flemish (Dutch).

[6] On 28 January 1948 Calewaert was appointed 27th Bishop of Ghent in succession to Honoré Jozef Coppieters who had died the previous month.

In 1950 he dedicated the St Paul Seminary at Mariakerke in the chateau bequeathed by the aristocrat-politician Amand Casier de ter Beken [nl], where seminarians could undertake the first two years of their training.