William T. Little, most often referred to as Mr. Little, is the patriarch of the Little family and the character who makes most of the decisions throughout the novel. He is optimistic and steadfast, and he never shows concern until there is a valid reason to be concerned. When the rest of the family worries about the Newcombs moving in for a few months, Mr. Little reassures them that “If they’re good enough for the Biggs, they’re good enough for the Littles” (13). Later, when the concerns about the Newcombs’ poor housekeeping evolve into concerns about mice, Mr. Little assures the family: “There are no mice in this house. George Bigg wouldn’t stand for it” (22). Mr. Little’s optimistic nature helps the family remain calm in potentially concerning situations.

However, when serious concerns arise, Mr. Little proves he can be wise and proactive, relying not only on his optimism but also on his experience. When the mice appear, Mr. Little advises the family not to go out alone and to “Go armed at all times” (27). He understands that his family is at serious risk with mice around, and he focuses on their safety as he prepares for the worst.