Thank you Tony for your reply. You're perfectly right. This Marcelline Fontaine is the daughter of Olivier Pion-Fontaine and Agathe Touchette. For your records I give you those informations I got in the Book of Enosburg Falls, VT. Marcelline died Sept 1, 1932 Enosburg. She m. Theodore Lefebvre (Antoine & Elizabeth Guilbert). Theodore born Feb 20, 1850 St-Hugues, Bagot (the same village where Marcelline born) and died July 19, 1918 Enosburg.
I'm sure at 100% now that there's no Marcelline Fontaine in my line.