This diary dates from September 16, 1908 to December 31, 1908. It is the thirteenth diary is a series of thirty written by Mildred Deyo. Mildred Deyo was a twenty-four-year-old woman living in Newburgh, New York, with her sister, Edith, and their widowed father. Mildred Deyo lives a life of leisure in the early 20th century. Her days are filled with visiting friends and family, going to the tennis club to watch matches or play cards, and driving around the Hudson Valley. Mildred also takes numerous trips to New York, where she shops at stores such as Tiffany’s and attends theater shows such as Lady Frederick. Mildred goes to church every Sunday and is on the board of the Day Nursery. The diary is a good insight into the lives of the upper or upper middle class in the early 1900s.