This collection contains letters, photographs, and other material documenting Ernest L. Frye's time in the 487th Aero Squadron during World War I. Included in the papers are letters from Frye to his brother and sister describing his fellow officers, reminiscing about friends back home in Oregon, his experience on the Aero squadron baseball team, and other matters. Photographs of Frye along with his fellow officers in the 487th and playing baseball, as well as programs for dances, leave passes, train passes, documents of promotion, poems, a government letter honoring the memory of Frye, and newspaper clippings regarding Frye playing baseball are also included.