This map aims at localizing the office or residence of the members of the Shanghai Rotary Club, according to their nationality, between 1930 and 1948. Original data comes from three rosters of members published in 1930, 1940 and 1948. I relied on ArcGis and QGis to process and map spatial data. 

The map shows that Chinese Rotarians (red dots) tended to work or live in the International Settlement, especially the Central  and Western districts. While American members (blue dots) also favored the Central district of the International Settlement, they were also attracted by the Western section of the French Concession. By contrast, there were comparatively few British who resided or worked in the French Concession: most of them elected the Western district of the International Settlement as their favorite place of work or residence (yellow dots).