It took some searching, but The Billboard, 29 Dec 1947 (page 4) contains an article on the "Ice Follies of 1948."
The article was obtained digitally on http://books.google.com.
We've been discussing Gloria Fecht here and this is the first article I have been able to locate that specifically mentioned her Ice Follies experience. The entire issue can be viewed in the window below:
We'll have updates as more information is located. I'm not certain we'll have a Casefile Clues article on Gloria as there hasn't been any really "difficult" research or analysis in order to find her. I did have to be careful as her one first cousin (a Fecht man) married a woman named Gloria and so there were two contemporaries with the same fairly unusual name of Gloria Fecht.