- EbookAshton-Kirk, CriminologistRalph L. (Ralph Ludwig) Boyer
- EbookAshton-Kirk, InvestigatorRalph L. (Ralph Ludwig) Boyer
- EbookAshton Kirk, Secret AgentRalph L. (Ralph Ludwig) Boyer
- EbookRoss Grant TenderfootRalph L. (Ralph Ludwig) Boyer
- EbookThe Young Continentals at Bunker HillRalph L. (Ralph Ludwig) Boyer