I found Victor Lepine's death record transcribed on the Internet on the FamilySearch.org website. His parents are listed as Emile Lepine and Josephine Denuit [which you already know]. His place of birth is given as La Louviere, Belgium. I checked it out and found that La Louviere is 4 miles from Familleureux, Belgium. That's good news! It is likely that Alexandre was born there, too. I also found Emile Lepine listed [file #28189] on the Antwerp, Belgium Police Immigration Index 1840-1930. I don't know how you would go about getting that file.