- The Films of Hopalong CassidyFrancis Nevins · Waynesville, NC: The World of Yesterday, 1988
- Saturday Afternoon at the BijouDavid Zinman · 1973
- William Boyd - Stars der Kinoszene Band 42Peter Kranzpiller · D-88267 Vogt: Verlag für Filmliteratur Peter Kranzpiller, 2004
- Hopalong Cassidy: On the Page, On the ScreenFrancis Nevins
- Hopalong Cassidy--An American LegendGrace Bradley (as Grace Bradley Boyd), Michael Cochran · Russ Cochran,
- Films of the Golden Age (US)"William Boyd: Before the Legend"2013 · Iss. 73, pg. 24-49 · by: Diane Jarrett
- Fantastyka (FR)"Le fantastique dans le western américain"October 1993 · Iss. # 1, pg. 33 · by: Gires, Pierre
- Classic Images (US)"An Index to the Films of William Boyd, Part II"April 1993 · Iss. 214, pg. 53-55 · by: R.E. Braff
- Classic Images (US)"An Index to the Films of William Boyd, Part I"March 1993 · Iss. 213, pg. C15 · by: R.E. Braff
- Classic Images (US)"Hoppy and Me"April 1992 · Iss. 202, pg. 38-40 · by: Frank "Junior" Coghlan
- Mon Ciné (FR)August 18, 1927 · Vol. 6, Iss. 287
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