Like the many of Salinger's famous short stories, both "Raise High the Roof Beam, Carpenters" and "Seymour: an Introduction" are about the fictional Glass family, a set of seven intelligent, highly-educated, and spiritual siblings. In these stories, the insular and alienating nature of the Glass family surfaces yet again (having been discussed first in the short stories "Franny" and "Zooey"). Narrator Buddy Glass struggles with the difficulty of communicating to the reader (a clear outsider) the inner workings of the rather unique inner workings of the Glass family.
The Glass family characters alienate the reader.
The characters in the Glass family are endearing and likable to the reader.