Charles T. Folsom was married in Norridgewock, but me may not have been born there, and none of his children seem to have been born there.
I have the book "Vital records of Norridgewock, Maine", printed in 2008. The only entries of any kind for Charles is a transcription of a marriage intention, and a marriage record, below. The names of his children are not listed in this book at all. So my guess it that he moved away from Norridgewock before having children.