MARQUETTE — The Honorable James L. Oberstar was expected at 7 a.m. today at the Lake Superior & Ishpeming ore dock in Marquette’s Upper Harbor, followed by the Kaye E. Barker at 11 this morning. The James L. Kuber is due at 2 p.m. Monday. Expected at 3 a.m. Tuesday is the Lee A. Tregurtha.