Unlike Bertie's other aunt Agatha, this aged relative seems to enjoy Bertie's company and occasionally shows him an aunt's love, even if she does call him a "young blot." Sometimes, Bertie suspects, Dahlia seems to value him more for his association with the exceptionally brainy Jeeves than for his own qualities. Her chief use for Bertie, however, is to commit minor burglaries or acts of calculated vandalism, which often misfire and require Jeeves to extract them both from the soup.
Her most notable personal characteristic is her carrying voice. Riding as she did for years with the Quorn and the Pytchley, she can emit a yelp that can be heard in the next county.
She was for many years the proprietor of a weekly newspaper for women, Milady's Boudoir, which never sold well and only stayed in business because of the reluctant largesse of Dahlia's husband, who referred to the paper as "Madame's Nightshirt."
AuntDahlia steadied herself against the sideboard, and spoke in a low, husky voice: "Faces?" "Yes, madam." "Through the skylight?" "Yes, madam." "You mean he's sitting on the roof?" "Yes, madam.
While I stood musing thus, AuntDahlia, in her practical way, was coming straight to the point: "What's all this?" Anatole did a sort of Swedish exercise, starting at the base of the spine, carrying on through the shoulder-blades and finishing up among the back hair.
It isn't often that AuntDahlia, normally as genial a bird as ever encouraged a gaggle of hounds to get their noses down to it, lets her angry passions rise, but when she does, strong men climb trees and pull them up after them.
Only his aunts â" AuntDahlia and Aunt Agatha, sisters of his late father â" play major roles in the stories; his uncles, while mentioned in passing, are not recurring characters.
Nevertheless, he is perpetually afraid of his Aunt Agatha, who considers him a spineless invertebrate and a burden on society; his AuntDahlia, on the contrary, likes him very much, often inviting him to stay at her country estate, Brinkley Court.
Aunt Agatha is of the opinion that Bertie, a burden to society in his present state, must marry and carry on the Wooster name; furthermore, he must marry a girl capable of moulding his personality and compensating for his many defects.