Ah, the beauty of the internet!
I take it that your mom must be one of the O'Dea girls (that's at least how I have them recorded). Yes - Gladys was sister to my dad (Fred). I can help you out (and, of course, I look forward to your info, too!).
You can either try to reach me here, or through johneb7 at Yahoo dot com (I'm not sure if they have an email filter on the board or not).