The letters would be from Saskatchewan, Canada and the family names are Baron, Gebhardt, Reichel, Schwietzer (all spellings). I am sure that I had seen some written from 'Baron' but looking today, I don't see any. Baron is the family name with Gebhardt, Reichel and Schwietzer being female Baron marriages.
The families started coming to Canada in 1912 and I would say that the families that made the trek, settled in Saskatchewan.
If you do find anything... it would be such a treasure to add to the family tree for my in-laws. We are heading to Sask. this weekend to visit the Uncles and Aunties that still live there, so, thank you so much for your offer.