| THE YOUNG WIRELESS OPERATOR | |
| Notes | Titles | 
| Not too confident about these; think I may be missing some. | THE YOUNG WIRELESS OPERATOR AFLOAT; or, How Roy Mercer Won His Spurs in the Merchant Marine -- THE YOUNG WIRELESS OPERATOR WITH THE OYSTER FLEET: How Alec Cunningham Won his Way to the Top in the Oyster Business -- illustrated by Frank T. Merrill. 1922, Wilde. THE YOUNG WIRELESS OPERATOR AS A FIRE PATROL; or, The Story of a Young Wireless Amateur Who Made Good as a Fire Patrol -- 1921, Wilde. THE YOUNG WIRELESS OPERATOR WITH THE U.S. SECRET SERVICE; or, Winning His Way With the Secret Service -- 1923, Wilde. THE WIRELESS OPERATOR WITH THE U.S. COAST GUARD -- 1924. Wilde. | 
| Source: WorldCat Holdings |