Raise High the Roof Beam, Carpenters and Seymour: an Introduction
How we cite our quotes:
[Mrs. Silsburn]: "This child could double for Muriel at that age. But to a T."
The whisky was steadily edging up on me, and I couldn't quite take in this information whole, let alone consider its many possible ramifications. ("Roof Beam" 4.40)
Salinger is careful to emphasize this point about Charlotte and Muriel – so we know it's important. Now we suspect that Seymour's love for Muriel is really subconsciously driven by his childhood love for Charlotte.