I am so happy to find you! I have been researching the Terrion family for two years. The immigrant ancestors were Martin Terrion and Maria Cecelia Engle Terrion. They came to Pittsburgh from Alsace ca 1867. They were mainly glassblowers. Many of them ended up in Bellaire, Belmont County, OH. I believe that Pauline Terrion Ernette was possibly the oldest daughter. Other siblings were Joseph Terrion, Peter Terrion(killed young by a train in Pittsburgh), Mary Terrion (Tschippert), Elizabeth Barbara Terrion Hores Rima, and Anna (a nun with Sisters of St. Francis of Philadelphia). Martin died in Pittsburgh; his wife Maria Cecelia Terrion died in Moundsville, WV (across the river from Bellaire) on December 6, 1906. I can send you a family group sheet with dates, etc. Please contact me at firstname.lastname@example.org
for more information and details. If we can prove Pauline was the daughter of Martin and Maria Cecelia Terrion, then I can take your line back two more generations.