I looked in my books which are loaded with names but found no Leon or Napoleon Gelinas married to Josephine Lacerte. I did find some Louis Gelinas but with no son listed as Leon or Napoleon Gelinas.
A really good source that may be able to help you is Marcel Gelinas. He's from Massachusetts. His e-mail is firstname.lastname@example.org Let me know if he was able to help you. I'm interested in knowing who Louis Gelinas wife was. Once I know that, then I more than likely can find them in my files. Sorry I couldn't be of any help. Good luck in your research.