Evangeline is educated and articulate and decisive. She frequently refers to her relatives as “dear” or “pet.” She is on the side of goodness and justice.
Harriet has a more ingenuous voice and relates to her mother-in-law as a mentor. She is out on the growing edge. She has a good heart.
Ralph has a more casual way of relating. He uses P.G. Wodehouse-isms, e.g. “What ho” and “Toodle pip.” He, too, means well and is becoming increasingly mature.