This series begins in book 5, Sparks in Spearfish, of the Seven Brides of South Dakota series.
However, you don’t need to read that book to jump right in with book one.
The Brothers of Belle Fourche is a novella series set in pioneer South Dakota. Get Teach Me to Love in the limited time collection, Timeless Love. It will be released as a single title in early July.
Also now available on preorder, books 2 and 3 in the Brothers of Belle Fourche series.