Modern marvels  Historic Landmarks Foundation sponsors a free lecture by Will Miller, Eero, Irwin and Xenia: The Design of Two Houses, 5:30 p.m. in Shelton Auditorium at Christian Theological Seminary.  Miller, chairman and CEO of Irwin Financial Corporation, reflects on the relationship between his parents and famed Finnish architect Eero Saarinen, who designed two houses for his family. Famous for his design of the St.