A Weekend with the Glass Family

I took a break from Raymond Carver's Collected Stories to reread JD Salinger's Franny and Zooey. They are perfectly paced, but feel a bit slight to me. What's interested me more is the report that Salinger spent his years in semi-seclusion creating an entire Glass world. How many writers devote their entire writerly oeuvre to one family? It's either brilliant or crazy making.