Wisconsin's Charles McCarthy & the Evolution of the Legislative Reference Movement
Here's another good article from the latest edition of Law Library Journal (Winter 2007).
In Go and Tell the World: Charles R. McCarthy and the Evolution of the Legislative Reference Movement, 1901-1917, Paul D. Healey writes of Wisconsin's other McCarthy.
Professor Healey describes the work of Charles R. McCarthy who, in the early twentieth century, almost single‑handedly created the legislative reference library concept. In doing so, he developed radical new forms of reference librarianship, tirelessly promoted the concept of special librarianship, and spread legislative reference services around the country.