In the same vein as the US Navy in Mexico 1916 topic, here is a postcard showing a US sailor's impression of what duty on the Whang Poo River [Huangpu River; 'Yellow Bank River'] in China was like.
On the back it says "Shanghai, China 6-17-16 This river is full of boats and Chinese like you see on here. They live on the slops that ships throw overboard. Here is one along our starboard side catching what we dump out. They eat, sleep and live in the little boat. several have as high as five children and parents all at home in the little 'sam pan'. Lovingly, Doyle "