I'm sorry to get back to you years after your post, but I'm new and I was browsing for some of my own family history when I noticed your question.
If you haven't found anything and are still interested, I found something on the singer from the group, Kara Nemeth Brothers Orchestra. Violet Veronica Hardy Mayernik. Here is a link to her obituary.http://www.legacy.com/obituaries/mycentraljersey/obituary.as...
Also, I found this notice about the group and a request for their music. I'm attaching a page of the William Penn Life magazine for 2012. Hope this helps. Good luck with your search.