I'm the great grandaughter of Frederick and Rose (weber) Grohs. I'm not sure if you've found out any more about the grohs family (this is an old entry i know) there is a MASSIVE book about the grohs family it traces everyone. What I can tell you Is that I am Jeromes Grandaughter and my DAD has 60 cousins, so good luck and I do have more info just not infront of me right now.
Also if possible can you scan and send me a copy of:
1. Frederick Grohs in uniform, taken in Mitchell, SD
2. Rose (Weber?) and Frederick Grohs - Parkston, SD wedding photo (November 25, 1919?) --the date is right

It would just be nice to see them.
Amanda