Who is Mother, Louise, and Old Elsie from London Transports and what is their importance? London_Transports English & Literature "Mother

Adam's widowed mother assumes that she knows everyone of substance among London's twelve million inhabitants, including any friends that Adam might invite for a weekend visit. She and her sarcastic, sardonic, bookish, nineteen-year-old daughter Louise, Adam's younger sister, are surprised when Adam asks to bring a female. Louise works in a library and shows no interest in men. Adam knows that Louise will find plenty of ammunition in Adam's lover, Heather, the first person ever to be invited to spend the night at the ancestral home in Sussex, which he visits every other weekend. When Adam backs out of the visit, talking first to Elsie, the retainer who has been laboring hard to put the guest room in shape, and then to his mother, he believes his mother may suspect that he is doing something he would prefer, but says nothing.