My relation to Hermine is distant. My wife's grand-father would be William Erb, however, his second wife Lena would be her grand-mother.
I have been to the cemetery where Hermine is buried (Tomah, Wisconsin) with at least 1 of her children (Charles Erb 1909-1912).
The Erb family believes that William and Hermine are from the same area in Switzerland, but have had little luck in find where William Erb is from in Switzerland. Also, family legend believes that Williams second wife Lena was from the same area in Switzerland. Anything you can share on Switzerland where your Grand-Ma is from would be nice.
I'll double check the offspring for any of your direct cousins from Hermine Frick Erb.
Please feel free to contact me either through this post or message on Ancestry.