My first peice of evidence that roger is alone is that he would resort to stealing. In the story he tries to steal Mrs. Washington purse to support himself because no one is making money with a job because he does not have anyone to live with. And he was going to use the money for shoes which could mean no one taught him priorities on what to buy.
The second peice of evidence I have is that he said he lived alone. In the story, Mrs. Washington mentioned that he had