Nice to meet you!
Have you ever seen the "Never Far From Eagle Tail Hill" book? There's a digital copy on the St Mary's website (heads up, it's 23MB):http://www.boianchurch.mareleboian.com/pdf/never%20far%20fro...
This was a book that was published ~1980 with stories about each of the settling families in the area. There are some Esak families in there! There are also lots of Tomas in there, including my great great grandparents, Mihai and Katrina.
I hope that this helps you with your search! Everything I know about this branch of my family tree came from this book.
That being said, I haven't found any new info; I did order some microfilms from the website that the previous poster, rwf_TO suggested, but since there isn't a Family Centre associated with the Mormon Church in my town, it was never shipped.