Thank you. I'm working out the format as I go, but I think I've found something that works.

I think "The Christians waking up" means that people are going to church more than they used to, attending all kinds of services. I'm not sure exactly what church the Grennells went to (I'm hoping I can figure this out with more letters) but I think Marcia sees the Methodists as another branch of the same tree. "Our people" most likely means her own congregation. The two congregations are clearly friendly, as one of the Methodists has come to her church to report on attendance and worship there.

I wish I knew more about the religious beliefs of the southerners. I did find this quote here

All Virginia churchgoers saw their congregations torn asunder at least once during the sectional conflict, whether in the process of dividing from Northern churches before the war, when they sent their sons to fight, or upon the secession of black members from biracial communities.

This seems to imply that religious communities Virginia were fragmenting as a result of the conflict, while I see signs of renewed faith and agreement up in Vermont.