The butcher from whom the Nolans buy cow’s tongue. Francie notes how he is sometimes disagreeable about selling them the end of the tongue for a nickel. Usually, he sells cow’s tongue to rich people for seventy-five cents a pound, but if there is a little left, he will sell “the square end” for a nickel if you have “a pull,” or a slight struggle, with him over it. On the day Francie visits him, he gives it up easily, saying that he saved the piece for Katie because he likes her. He tells Francie to tell her mother, but Francie does not like Mr. Sauerwein and quietly decides not to deliver this message.