W.Westcott II delivers mail to a community of about 5,000 sailors shuttling back and forth across the Great Lakes to numerous industrial ports like the one pictured here.

• W.；韦斯科特II号邮递船为约5，000人的水手社群递送邮件，这些人往来穿梭于五大湖区的众多工业港口之间，图中的港口是其中之一。