Jack Power is described as being tall and slender, with reddish-brown hair cut short, and he has green eyes and freckles.
[6] Chip Power is slim, almost as tall as Jack, has blond hair with reddish glints, and his eyes are blue.
[6] Detective James Wilson, of the New York Police Department, is a tall man with white hair and gray eyes.
The Dalmatian joined the family at the end of the first book, after Mr. Power returned from covering a brush fire that threatened Griffith Park.
William Larson, an editor hired by Whitman in 1964, stated that if more than one book in a series was published in a year, they were almost always written by different people.
[13] A 1964 article stated that sometimes two authors write under the same pseudonym, "such as Julie Campbell or Mel Lyle," but Whitman restricted the writers under one byline "because juvenile readers detect differences in style and send letters of complaint.
[18] During the 1950s a series of short paperback Power Boys novels were published by Triple Nickel Books.