MARQUETTE — The Honorable James L. Oberstar is expected at 7 p.m. Wednesday at the Lake Superior & Ishpeming ore dock in Marquette’s Upper Harbor. Four boats are due on Thursday: the Lee A. Tregurtha at 1 a.m.; the Kaye E. Baker at 2 p.m.; the Menominee at 7 p.m.; and the James L. Kuber at 10 p.m.