Few work settings compete with the waterfront for a long, rich history of multi-ethnic and multiracial interaction. Irish dockers from Chelsea to Ashtabula to Tacoma labored side-by-side with African Americans, Poles, Germans, Scandinavians, and Italians. Eastern Europeans worked with the Irish and black workers in Philadelphia. Farther south, African Americans were the majority on the Baltimore waterfront in the 1930s. On the Pacific Coast, where...