1. Air service boys over the enemy's lines : or the German spy's secret Title: Air service boys over the enemy's lines : or the German spy's secret Date: 1919. Author: Beach, Charles Amory. Collecting Area: Mathes Childrens Literature Call number: YH B365 A4A LOCAL
2. Air service boys over the Rhine : or fighting above the clouds Title: Air service boys over the Rhine : or fighting above the clouds Date: ©1919. Author: Beach, Charles Amory. Collecting Area: Mathes Childrens Literature Call number: YH B365 A4B LOCAL
3. Air service boys flying for France : or, the young heroes of the Lafayette Escadrille Title: Air service boys flying for France : or, the young heroes of the Lafayette Escadrille Date: ©1919. Author: Beach, Charles Amory. Collecting Area: Mathes Childrens Literature Call number: YH B365 A4 LOCAL
4. Air service boys over the Rhine, or, Fighting above the clouds Title: Air service boys over the Rhine, or, Fighting above the clouds Date: ©1919. Author: Beach, Charles Amory. Collecting Area: Mathes Childrens Literature Call number: YH B365 A4B 1919 LOCAL
5. Air service boys in the big battle; or, Silencing the big guns. Title: Air service boys in the big battle; or, Silencing the big guns. Date: [©1919] Author: Beach, Charles Amory. Collecting Area: Mathes Childrens Literature Call number: YH B365 A4AL 1919 LOCAL