We do have these volumes Brian bought as a child.
No publication date, but they clearly went through several printings. #190 was originally priced at $2.00, while #26 has a sticker for $2.95 (although the interior back cover lists all books at $2.50 plus postage for mail order).
Walter T. Foster of Tustin, CA published 205 titles at the time of the later printing. These two and #25 "Animated Cartoons" are the only ones by Blair, and the only titles on animation.
The most intriguing is #117 "The Model" by Fritz Willis.
Liberated woman? Struggling co-ed? Young divorcee? Heartbroken housewife? Cruel marketing to place such an open ended question on the cover. Was this Fritz' secret paramour? His unrequited love? Mystery.