ClassicsThe Young Wireless Operator—With the U. S. Secret Service - Winning his way in the Secret ServiceLewis E. (Lewis Edwin) Theiss
ClassicsThe Young Wireless Operator—With the Oyster Fleet - How Alec Cunningham Won His Way to the Top in the Oyster BusinessLewis E. (Lewis Edwin) Theiss
ClassicsThe Young Wireless Operator—Afloat - Or, How Roy Mercer Won His Spurs in the Merchant MarineLewis E. (Lewis Edwin) Theiss
ClassicsThe Young Wireless Operator—As a Fire Patrol - Or, The Story of a Young Wireless Amateur Who Made Good as a Fire PatrolLewis E. (Lewis Edwin) Theiss
