few weeks before her death at age 91 in 2017. Judy Bolton The first Judy Bolton book, was published in 1932, called ''The Vanishing Shadow.'' Sutton was best known for writing the Judy Bolton mystery series, which sold more than five million copies. Her Judy Bolton books were advertised as all being based on actual events from Sutton's life. Many of the Judy Bolton stories are based on events from Sutton's hometown, Coudersport, Pennsylvania. Her earlier Judy Bolton books were illustrated by Pelagie Doane, who also illustrated her Magic Maker books. The last Judy Bolton book that Sutton published was ''The Secret of the Sand Castle,'' in 1967. The series ended in 1967, before the next book The Strange Likeness could be published. However, In 1997, Linda Joy Singleton privately published Judy Bolton: The Talking Snowman, a new Judy Bolton mystery written by Sutton and Singleton. Sutton began the manuscript for this book in 1980, and years later Singleton finished it with help from Sutton. The incidents in this book placed it between the 3rd and 4th books in the series, leading it to be known as book # 3-1/2. In 2012, with the permission of Margaret Sutton's family, coauthors Kate Duvall and Beverly Hatfield wrote The Strange Likeness based on Margaret Sutton's original title and conversations with the author and her family. It was edited by Margaret Sutton's youngest daughter, Lindsay Sutton Stroh, and illustrated by another daughter, Marjorie Sutton Eckstein. Published by Applewood Books, the volume is #39 in the Judy Bolton Mystery Series. Other publications Sutton wrote many books including the Gail Gardner series; Palace Wagon Family; Jemima, Daughter of Daniel Boone; and The Magic Maker series. Sutton did all her own writing and holds the distinction of having the longest lasting juvenile mystery series written by a single author, unlike the series books written by numerous authors by the Stratemeyer Syndicate. A Shepherd Boy of Australia and The Boys of the Ohio Valley were illustrated with photographs. Books and series by Margaret Sutton Judy Bolton Series (38 volumes, 1932-1967) Gail Gardner (2 volumes, 1944-?), inspired by letters from her niece, Rosaleen Ingalls, while she attended nursing school, and also by the author's experience as a Red Cross nurse's aide. A Shepherd Boy of Australia (1941) Two Boys of the Ohio Valley (1943) The Magic Makers (at least 3 volumes, 1936) Wer spielt mit mir? (Released in