Mobile homes as we know them today came about in 1926 with automobile-pulled trailers or "Trailer Coaches." These were designed as a home away from home during camping trips. The trailers later evolved into "mobile homes" that were brought into demand after World War II ended.
Veterans came home needing housing and found dwellings to be in short supply. Mobile homes provided cheap and quickly built housing for the veterans and their families".
(The History of Mobile Homes).
США. 1920-е гг.(отсюда)