After his death, his private library stayed with his widow until it was bought in 1948 by the Catholic University of Leuven, to help reconstruct its collections after they were destroyed by the Germans for the second time. In 1970, Omont's library was divided when the university separated into a Dutch-speaking university that remained in Leuven,[3] and a French-speaking one that moved to a new university town called Louvain-la-Neuve.[1]
Notice sur un très ancien manuscrit grec de l'évangile de saint Matthieu... (Notices et extraits des manuscrits de la bibliothèque nationale; vol. 36.) (Paris, 1901).
Bibliographie des travaux de M. Henri Omont. Paris: H. Didier ; Toulouse: Ed. Privat, 1933, XI-270 p. 1108 entries. "Pour le cinquantième anniversaire de l'entrée à la Bibliothèque nationale de m. Henri Omont, la bibliographie de ses travaux a été dressée par les conservateurs-adjoints et les bibliothécaires du Département des manuscrits de la Bibliothèque nationale." Edited by P. Lauer and E. A. van Moé.
Chris Coppens a.o.(eds), Sapientia aedicavit sibi domum: Leuven University Library 1425–2000, Leuven 2005, p. 351