Briefly describe Mrs. Harling and her children.

From the text:

Mrs Harling: Mrs. Harling was short and square and sturdy-looking, like her house. Every inch of her was charged with an energy that made itself felt the moment she entered a room. Her face was rosy and solid, with bright, twinkling eyes and a stubborn little chin. She was quick to anger, quick to laughter, and jolly from the depths of her soul. How well I remember her laugh; it had in it the same sudden recognition that flashed into her eyes, was a burst of humor, short and intelligent. Her rapid footsteps shook her own floors, and she routed lassitude and indifference wherever she came. She could not be negative or perfunctory about anything. Her enthusiasm, and her violent likes and dislikes, asserted themselves in all the every-day occupations of life.

Charlie, Julia, and Sally: Charley, the only son,—they had lost an older boy,—was sixteen; Julia, who was known as the musical one, was fourteen when I was; and Sally, the tomboy with short hair, was a year younger. She was nearly as strong as I, and uncannily clever at all boys’ sports. Sally was a wild thing, with sunburned yellow hair, bobbed about her ears, and a brown skin, for she never wore a hat. She raced all over town on one roller skate, often cheated at “keeps,” but was such a quick shot one could n’t catch her at it.

Frances: The grown-up daughter, Frances, was a very important person in our world. She was her father’s chief clerk, and virtually managed his Black Hawk office during his frequent absences. Because of her unusual business ability, he was stern and exacting with her. He paid her a good salary, but she had few holidays and never got away from her responsibilities.

Frances was dark, like her father, and quite as tall.