Nutter, McClennen, and Fish, the successor law firm to Brandeis, Dunbar, and Nutter, is the first of the nine series in the Louis D. Brandeis papers. It embodies the material generated in the public interest by Brandeis during his years as a member of two Boston law offices: Warren and Brandeis, 1879-1897, and Brandeis, Dunbar, and Nutter, 1897-1916.

The subdivision titles in this series were part of Brandeis' filing system, but each file was further divided chronologically after the collection arrived in Louisville. Representative titles include Washington Street Subway, Boston & Maine/New Haven Railroad Merger, Collier's Ballinger Investigation, Insurgency, Harvard College, New York Garment Workers, and Advance Rate Case. Working drafts of speeches and articles, many written for Norman Hapgood's publications, Collier's and Harper's Weekly, are also found here. The correspondence files dealing with Brandeis' Supreme Court confirmation (NMF 75-85) are alphabetically arranged by correspondent, an exception to the normal chronological order.

A large amount of material dealing with the merger of the Boston and Maine/New Haven Railroads (Boxes 1A-1Q) was added to the collection after Mr. Brandeis' death, but was filed and microfilmed at the beginning of this series.