List of garages in Shanghai, after two special reports from US Department of State: 

• List of the main garages in Shanghai. Enclosure No.3 to report of Edwin S. Cunningham, American Consul General at Shanghai, China, dated April 1, 1929, on the subject: "The import and use of automotive vehicles in China". Source: NARA, RG59-CRT-box530
• List of the main garages (services stations) in Shanghai, all of which are of favorable reputation. Enclosure to the report of Edwin S. Cunningham, American Consul General, Shanghai, China, dated July 18, 1930, on the subject of "The Automotive situation in China for 1929". Source: NARA, RG59-CRT-box651. 
• List of Members of Shanghai hire car operators' association. Enclosure No.4 to report of Edwin S. Cunningham, American Consul General at Shanghai, China, dated April 1, 1929, on the subject: "The import and use of automotive vehicles in China". Source: NARA, RG59-CRT-box530

Provides information on the name, address, year of establishment, nationality, approximate size and reputation of each firm. The list of members of Shanghai hire car operators' association only provides the name and addresses of the firms.