Upper Class
The social group that has the highest status in society in the 20th and 19th century.
Middle Class
The social group between the upper and working classes, inc professional and business people and their families
Working Class
The social group of people who are employed for wages, especially in manual or industrial work
Classes in An Inspecter Calls
The two older Birlings are middle class and the younger ones are Upper Class as well as Gerald.