Collection consists primarily of Arleth family correspondence, mostly letters of Frederick “Fritz” Arleth Jr. to his wife, Christina, and letters of Minnie (Mina) Hieber to her sister Mrs. Christina Arleth. (These letters are in German, and English translations appear at the bottom of this finding aid.) The collection also includes receipts, promissory notes, statements, and accounts mostly of Christopher F. Arleth while in St. Louis.