A search for copyright renewals was done for the years 1969 and 1970 for this title. Nothing was discovered, so there's no evidence of any further Macfadden claims for the material.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
{{Information |Description=Photo of singer-actress Betty Jane Rhodes. |Source=[http://archive.org/stream/radiotelevi00macf#page/n487/mode/2up Radio and Television Mirror] front cover |Date=December 1942 |Author=[http://archive.org/stream/radiotelevi00m...