New York: Grosset & Dunlap, (1932.). Hardcover first edition - The third book in this mystery series (the first 3 were all issued in 1932), which is in many ways, more realistic than most such series. Judy starts out as a high school girl, has some of the usual problems all kids encounter including misunderstandings among friends, etc, is a little older and more mature in each book - in fact, she gets married, and eventually she and her husband even adopt a child. The "mysteries" are mostly based on actual events, the town is the town where Sutton grew up and unlike most of the other series books published by Grosset and Dunlap, this was not part of the Stratemeyer Syndicate. Margaret Sutton was a real woman, writing under her own name. Because of the opposition of the Stratemeyer Syndicate, this series did not have the extensive reprinting that the Nancy Drew and Hardy Boys had. Illustrated by Pelagie Doane with a glossy frontispiece and three inserted plates. 213 pp. plus 3 pp publisher's ads. Lists to self and Nancy Drew Mysterious Letter at back of book,. ISBN: B07MJRFJY9.

New York: Grosset & Dunlap, (1960) dj. Hardcover first edition - A uncommon title in this mystery series, which is in many ways, more realistic than most such series. Judy starts out as a high school girl, has some of the usual problems all kids encounter including misunderstandings among friends, etc, is a little older and more mature in each book - in fact, she gets married, and eventually she and her husband even adopt a child. In this book, while Peter is attending a training session at the FBI, Judy and her friend Honey decide to take a trip - a misunderstanding leads to them driving across the country to Yellowstone Park, where they will encounter danger the hot springs and a gang of thieves. Unlike most of the other series books published by Grosset and Dunlap, this was not part of the Stratemeyer Syndicate. Margaret Sutton was a real woman, writing under her own name. Because of the opposition of the Stratemeyer Syndicate, this series did not have the extensive reprinting that the Nancy Drew and Hardy Boys had. Frontispiece. Lists to self at front of book and on rear flap of dust jacket. . 182 pp.

Philadelphia: Penn Publishing Company, (1937). Hardcover first edition - One of two stand-alone aviation books written by Wirt under her own name. Wirt went on to become a pilot herself. In writing about her career she commented that in the aviation stories perhaps she could detect "a long-slumbering personal wish? Until this moment, the motivation which led me, late in life, to become a pilot had gone unrecognized. At an age when wiser persons welcome Social Security, this misguided author took up flying, earned advanced ratings, and presently functions as a commercial pilot, reporter, and aviation columnist for a Toledo newspaper. Significantly, now that I might be better qualified to write aviation fiction, I feel no urge to do so." Illustrated by Frank Lea. Glossy frontispiece. 217 pp.