Marc Mitscher
Oscar married Myrta Viola Shear and would have three children. Their son, Marc Mitscher, would become an Admiral in the United States Navy. The Shear family also lived in Hillsboro, Wisconsin, and made the Land Run of 1889.Byron D. Shear, Myrta's brother, would also become a Mayor of Oklahoma City. Her father, Thomas J. Shear, was a member of the Wisconsin State Assembly. Oscar A. Mitscher died on July 24, 1926.