By Jim Misunasjmisunas@gbtribune.comLARNED — A notebook of information about the B-29 Memorial in Great Bend compiled by Mildon Yeager will soon be featured at the Barton County Historical Museum.U.S. crews were trained to fly the B-26 and B-29 bombers at the Great Bend Army Air Field during World War II. The airfield is the site of a memorial dedicated to the men and women who manufactured, flew and provided support for the Boeing B-29 Superfortress. Designed by veterans Richard Bergen and Gene Hinde, the intersecting arches rising from the ground represent the emblem of the Global 20th Air Force. Intersecting arches represent the emblem of the Global 20th Air Force with a centerpiece of a B-29 cast in stainless steel.