She was Father's nurse when he was a little boy; then she stayed to take care of Father's mother, Grandma Anderson, who was an invalid for a great many years and who didn't die till just after I was born.

Then she took care of me.

So she's always been in the family, ever since she was a young girl.

She's awfully old now--'most sixty.
First I found out how they happened to marry--Father and Mother, I'm talking about now--only Nurse says she can't see yet how they did happen to marry, just the same, they're so teetotally different.
But this is the story.
Father went to Boston to attend a big meeting of astronomers from all over the world, and they had banquets and receptions where beautiful ladies went in their pretty evening dresses, and my mother was one of them.

(Her father was one of the astronomers, Nurse said.) The meetings lasted four days, and Nurse said she guessed my father saw a lot of my mother during that time.