Ernestine, I am also the granddaughter of Charles N. and Emma. My maiden name is Deyo. I vaguely remember Aunt Rose, and I know she passed away a few years ago. You have probably spoken to my brother Charles (Jack) who was in contact with her. Aunt Rose didn't have 10 siblings - She had 5: Charles E, Donald, Marjorie, Rose and Frances. There is another Rose Deyo who may have had a sister Amy, but not your mom. I also remember Nina from when I was VERY young. She came to visit my parents, Charles E. and Mary with Uncle Don.
Charles N.'s father was Daniel T. Deyo. I'm trying to find information prior to Daniel T's parents, Peter and Hannah Deyo but can't find anything.