What are the motifs in The Eye in the Door by Pat Barker?

The narrative features representations of upper and working-class Britons during WWI.

Beatrice (Beattie) Roper and her daughter Hettie, as well as Patrick MacDowell, are members of the British working class. Charles Manning and Siegfried Sassoon are members of the upper echelon of British society, and as such are members of the ruling class.