"Howard Keltner's "Golden Age Comic Index 1935-1955 (Revised Edition)" groups Bilbara, Tem, Helnit, Et-Es-Go, Narrative Publishers and Aviation Press with Holyoke.Narrative and Aviation were both clients of Temerson's art director, L. B. Cole, giving their publications a similar look

As well, notes the standard reference the Grand Comics Database, the Bilbara Publishing Company, one of publisher Worth Carnahan's companies, "has often been erroneously tied to Holyoke and to Frank Z. Temerson's companies because [artist] Charles Quinlan was involved in this and other Carnahan ventures, and took the character name 'Volton' (but not any other aspect of the character) with him to Helnit/Holyoke.