“Push and Pull: Life on Chesapeake Tugboats,” opens as a new exhibit on Saturday, April 21 in the Steamboat Building of the Chesapeake Bay Maritime Museum (CBMM) in St. Michaels, MD. The Chesapeake is a highway for tugs and barges, and for the large ships aided by tugs in port. The exhibit explores the lives of the men and women who work on these tugboats and the variety of ways tugs are used around the Chesapeake. In addition to interactive displays along with the images and stories of life on tugboats…