I read the book you've linked, neenah, and it was really great. Everyone should read it and marvel at the sheer energy this woman has with all the travels and good works she has done....not to mention raising such a wonderful family.
And what was more than noticeable is that she is 77 years old and still has energy to give to others!
(Of that, I am jealous.....I can barely take care of myself!)
I had parents like that. They loved us and were great parents, but boy, they loved one another first. I always heard that the best gift a Father can give his children is to love their Mother. I was blessed like that.
Reading the book, I see a couple like that. Barbara and George. It is something when you read that book and then look at the children. All different, but raised by parents who loved each other. That example is a wonderful gift to the children. They didn't have to "try"...it is/was as natural as "breathing ".
And that...comes but once in a lifetime.