Bill Poser (Language Log) pointed me to this passage Providence Journal article:

[Former Chief Justice Frank] Williams' new chambers needed a total overhaul, Berke said, because the office space had been used for a different purpose for years. It was formerly occupied by the [Rhode Island Supreme C]ourt's grammarian and interns, Berke said, and had been configured not as a chambers for a justice, but as an office with three work stations.

Anyone know more about the Rhode Island Supreme Court grammarian?