These cards are addressed to Harry Day and Josie Day in Donnelly MN, presumably members of the same family. Each is postmarked only in Donnelly MN, so they were probably sent locally. The handwriting on each card differs.
Rieger, postmarked Donnelly MN 8/08/1907. Rieger, postmarked Donnelly MN 2/10/1908.
Steve's SF postcard pages: