ALL SAINTS CELEBRATED IN AUGUST Saints celebrated on the 5th of August DOMINIC OF SAINT MARY, RELIGIOUS Dominic of Saint Mary (Dominicus a S. Maria) is mentioned by a numbers of writers of the Order of Preachers, to which he most probably belonged. (Information from Stadler 's Complete Encyclopedia of Saints, Volume 1, Augsburg, 1858, p. 785) Stadler's Complete Encyclopedia of Saints - Sources and Abbreviations