The magazine listed here merits its own page because it printed the earliest articles about individual Mouseketeers in a (non-Disney) national publication. There's a curious symmetry to the first four articles. A short article on Annette is followed by a short article on Darlene, then a longer photo-illustrated article on Annette is followed by a longer photo-illustrated article on Darlene. It's likely that this was an organized campaign by the studio, which was promoting both girls at this time.
The articles appeared at three month intervals, except for the last one on Darlene. It should have appeared in October 1957 (with a November date on the cover) if the pattern was maintained. At that time, the information in it about Darlene being in the Annette serial would still have been valid.
The remaining articles from this magazine are very different in approach. They contain no studio publicity and do not appear to have been the result of actual interviews.