The Flying Reporter — Lewis E. Theiss
The Secret Wireless; Or, The Spy Hunt of the Camp Brady Patrol — Lewis E. Theiss
The Wireless Operator - With the U. S. Coast Guard — Lewis E. Theiss
The Young Wireless Operator - Afloat / Or, How Roy Mercer Won His Spurs in the Merchant Marine — Lewis E. Theiss
The Young Wireless Operator - With the Oyster Fleet / How Alec Cunningham Won His Way to the Top in the Oyster Business — Lewis E. Theiss
The Young Wireless Operator - With the U. S. Secret Service / Winning his way in the Secret Service — Lewis E. Theiss
