 The apostolic process opened on 8 January 1916 and concluded sometime later before the Congregation for Rites approved both process with a decree of validation on 16 July 1938.On 25 March 1945 he became titled as Venerable after Pope Pius XII confirmed that Donders had lived a life of heroic virtue.The miracle that led to his beatification involved the cure of the child Ludovicus Johann Westland on 12 September 1929 from bone cancer; this process spanned from 5 October 1931 to 3 February 1932 before the Congregation for the Causes of Saints later validated the process on 3 November 1973.